Thursday, April 21, 2016

PCBs

Polychlorinated Biphenyls (PCB's) were introduced in the 1930's and were seen as widespread use. But in the 1970's, they were banned after finding that they are toxic and posed a risk for the environment. This information was obtained by Andrew Havics', "Polychlorinated Biphenyls (PCBs)".


Contamination of the Fox River from PCBs illustration.

Disposal Requirements:

The disposal requirements of PCB waste steams must be managed according to the original source of the concentration, including those of older spills. However, the redefining of PCB remediation waste most permits these wastes to be managed according to the concentration of the current medium and not from the actual source. In the winter of year 2000, the Environmental Protection Agency issues a temporary deferral of the Land Disposal Restrictions (LDR) to direct the attention of contaminated soil that exhibit toxicity levels of wastes. This deferral does not apply where the total halogens exceed 1,000 ppm in the soil. This rule was instituted to reverse the previous regulations that resulted in discouraging generators from cleaning up contaminated soils.

PCB Remediation Waste:

The Mega Rule implemented three disposal options for PCB waste: self-implementing, performance-based, and risk-based. Self-implementing waste disposal is permitted for bulk PCB remediation waste, non-porus surfaces, porous surfaces (this includes concrete), liquids, and clean-up wastes. The calculation of PCB concentrations in any new clean-up should be based on the concentration at which the PCBs are found rather than on the original source concentration. One significant aspect of this is that any soil containing <50 ppm PCB's can be placed in a municipal or more industrial, non-hazardous landfill is permitted to accept low-level PCB wastes. The performance-based disposal options are for liquids, incineration or decontamination, for solids (TSCA incineration, TSCA landfill, or decontamination), and for dredged material containing <50 ppm PCBs (management per the Clean Water Act and US Army Corps of Engineers permitting). The EPA permits petitioning of the Administrator for alternative risk-based disposal options, other those that are already discussed, as long as the proposed storage or disposal method does not pose an unreasonable risk to human health or the environment. 

Site Cleanup:

EPA's rules allow self-implementing remediation, except in "sensitive locations". These aspects include site characterization (including sampling), a 30 day notification to EPA, specified cleanup levels, site clean up protocols, clean-up verification, capping, and deed restriction. Site cleanup regulations permit on-site use of soil washing and solvent extraction systems or decontamination as well as off-site disposal. Deed restrictions may be required depending on the occupancy standard. 

Decontamination:

The rule permits decontamination of a broad array of items including building components, equipment, water, organic liquids, non-porous surfaces, concrete, and coated porous surfaces. The decontamination methods include a long list of solvents used for cleaning as well as thermal processes for metal surfaces. For any liquids, the treatment standards vary with end use. The regulations provided new standards for non-porous surfaces that are in contact with liquids containing >500 ppm PCBs. Concrete is permitted to be decontaminated within 72 hours of a spill to achieve a surface concentration of <ug/100cm^2 for reuse. Records retention of sampling and analysis data is set at a minimum three years after completion of decontamination. 


PCB caution label

Shipping 1L Tert-butyllithium

There are eight steps to conduct when shipping hazardous materials and this includes classification, naming, packaging, marking, labeling, paperwork, and placard.  Tert-butylithium is classified as an organometallic substance, a pyrophoric liquid. It can catch fire when it is exposed to air and reacts violently with water to give off flammable gases and corrosive dusts. This chemical is corrosive to the eyes (may cause blindness), skin, nose, throat, and stomach. It can catch fire when exposed to body moisture or it it is exposed to air. Inhalation of the vapors may cause dizziness, nausea, anesthesia, numbness, motor weakness in fingers and toes, in-coordination, and headaches. If it is ingestion, it may produce a lung aspiration hazard. Flying this substance is considered to be not acceptable, but for sea and road transportation, the regulations are found under 4.2 (4.3) in the Guide to Shipping Biological Materials. Under its packaging groups, this chemical compound is rated to be a group 1 or group 2 substance. This ranking means that tert-butylithium is one of the more hazardous materials. Group 3 is considered to be the least.



Naming this material is considered to be an extremely important part of shipping hazardous materials. This is also referred to the PSN and is important for shipper and receivers and also any third party involved to identify and classify exactly what material is being shipped and how extensive and important it is to put in place precautions for handling it. The proper PSN name for shipping this item would be Tertiary-butyllitium. The next step for shipping hazardous materials is the packaging aspect. This is the step that is most important for selecting the correct packaging for shipping the materials in.  For this case, shipping one liter of this material should be properly packaged in a bulk package that specifies for less than exactly 450 liters of hazardous material. One way to package this bottle would be to contain it in a glass bottle and extract the material through a syringe.


Tert-butyllithium packaging


Next, marking the package is important for making clear to transporters, shippers, receivers, and third party members the classification of hazards. This step of shipping hazardous materials is recognized as markings that are the shaped hazardous signs/markings. For these markings, they must be labeled in English and attached to the top/front of the package. For shipping one liter of tert-butyllitium, the markings should state "Dangerous When Wet" and "Spontaneously Combustible". Labeling this package refers to the diamond shaped hazard sign that is most recognizable. This label should also go on the top or side of the package and near the shipping name, and if there is more than one shipping label they must be at least 6 inches apart.

Once these steps have been completed, paperwork must be completed. The paperwork must be legible and written in English. The basic description of the material must be described in order starting with the proper shipping name, hazard class, UN number, and then the packaging group. For shipping 1 liter of tert-butyllithium, the proper format would be: T - BUTYLLITHIUM, HYDROCARBON SOLUTION, 4.2 (4.3), UN 3394, PG 1/2. Finally ones this has been addressed, the last step is the placard. This is considered to be information the shipper must supply the carrier with for the hazardous material. For the shipment of one liter of tert-butyllithium, the placard would be 172.548.


Example of a shipping paper

Tuesday, April 19, 2016

ISO 14001, 9001, & 18001

ISO 14001:

The ISO 14001, according to Certification Europe,  is a newly revised standard that is internationally recognized environmental management standard that was originally published in 1996. It is considered a systematic framework that manages the intermediate and long term environmental impacts of an organization's products, services, and processes. The ISO 14001 is apart of the ISO 1400 standards that helps minimize the environmental footprint, diminish the risk of pollution incidents, provides operational improvements, ensure compliance with relevant environmental legislation, and develop their business in a sustainable manner. The key benefits of the ISO 14001 Standard include: identifying cost savings with greater emphasis on resource, waste, and energy management, developing the corporate image and credibility, quantify, monitor, and control the impact of operations on the environment now and in the future, ensure legislative awareness and compliance, improve environmental performance of supply chain, protect the company, assets, shareholders, and directors, potentially decrease public liability insurance costs for your organization, and growing access to business partners and potential customers.


ISO 14001 Process Cycle

ISO 9001:

The ISO 9001, according to the International Standard Organization, specifies requirements for a quality management system when an organization needs to demonstrate its ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements and aims to enhance customer satisfaction through the effective application of the system, including processes for improvement of the system and the assurance of conformity to customer and applicable statutory and regulatory requirements. All the requirements of the ISO 9001 are intended to be applicable to any organization, regardless of the type or size, or the products and services it provides. ACS Registrars states that the ISO 9001 ensures that the Quality Management Systems that are adopted work to improve the business as a whole and not just a set of procedures that employees find it hard to understand and manage. Some benefits the ISO 9001 will bring to the company include: providing senior management with an effective management process, sets out areas of responsibility across the organization, communicates a positive message to staff and customers, identifies and encourages more efficient and time saving processes, highlights deficiencies, reduces cost, provides continuous assessment and improvement, and marketing responsibilities. Benefits to customers include: improved quality and service, on time delivery, right time first attitude, fewer returned products and complaints, and independent audits demonstrate commitment to quality. 



ISO 9001 Benefits Flow Chart


ISO 18001:

Also referred to as OHSAS 18001,  ACS Registrars also states that it is internationally accepted as a method of assessing and auditing occupational health and safety management systems. Developed by leading trade and international standard bodies, it provides a framework for organizations to instigate proper and effective management of health and safety in the workplace. By implementing the OHSAS 18001, organizations are able to minimize risks to their workforce and visitors or external contractors on their premises. Key areas that are assessed in the OHSAS 18001 certification include: management systems, planning and risk assessment, staff training and awareness, communication of safety management systems, response to emergency situations, and monitoring and continual improvement. This is suitable for all types of organizations that want to become more efficient in managing and reducing accidents in the workplace. 



ISO 18001 (OHSAS 18001) Steps

Monday, April 18, 2016

Implementation of Chemical Facility Anti-Terrorism Standards (CFATS)

The Implementation of Chemical Facility Anti-Terrorism Standards (CFATS) regulates the security at high-risk facilities that possess one or more chemicals of interest. If the facility has more than the specified amount of a chemical, it must register with the Department of Homeland Security (DHS) and preform security-related activities. The DHS identifies a subset of high-risk chemical facilities from among those who register and of those high-risk chemical facilities, each must submit a security vulnerability assessment and a site security plan. This security vulnerability assessment and site security plan are used by the DHS to confirm their high-risk designation and to review and authorize. The DHS also inspects and approves high-risk facilities for their adherence to their submitted security plans and later inspects for compliance to the plans following its approval. The DHS regulates approximately 3,900 facilities under the CFATS program.


CFATS Flow Chart


In 2006, Congress authorized the DHS to regulate chemical facilities for security purposes and in 2007, the DHS issued final regulations establishing the CFATS. These regulations provided a process whereby facilities would submit information and security plans to the DHS, the DHS would review and approve these plans, facilities would implement them, and the DHS would inspect their implementation. The DHS frequently faces challenges in implementing these regulations and has not met its own expected milestones. As of October 2014, the DHS has inspected and approved 1,192 site security plans, which is approximately 32% of all regulated facilities.


CFATS Regulation Overview Explanation


Facilities processing a chemical of interest with quantities exceeding the threshold screening quantity must submit a Top Screen. This Top Screen creates results that assist CFATS in determining whether a facility presents a high-level security risk. After the Top Screen is processed, the CFATS Program assigns the facility with a preliminary tier or determines if the facility does not meet the criteria for the CFATS regulation. When a facility receives a preliminary tier assignment notification, it must prepare and submit a Security Vulnerability Assessment (SVA) to The Department of Homeland Security. After the SVA is reviewed, the CFATS program is reviewed, the CFATS Program determines if a facility's final tier assignment or if the facility is not at a high risk. When the facility receives a final tier assignment, it must develop and submit a Site Security Plan (SSP) to the DHS.

The Infrastructure Security Compliance Division (ISCD) within the DHS National Protection Programs Directorate (NPPD) reviews the SSP's to preliminary determine if it satisfies the applicable risk-based performance standards. This process typically involves discussions between the ISCD staff and the facility. This often requires the facility to submit additional information to the ISCD and revise the Site Security Plan before it can complete its initial review and issue the facility a letter of authorization for said Site Security Plan.

After the authorization is issued, the ISCD conducts a comprehensive and detailed authorization inspection. The ISCD then reviews the inspection results, as well as any further revisions that the facility may make to the SSP. It then makes its final decision whether the facility's SSP satisfies the applicable risk-based performance standards. If so, the ISCD issues a letter of approval to the facility and it must implement applicable provisions of the SSP. If the facility fails to do so, the ISCD may disapprove of the SSP. After the inspection, facilities are usually granted 45 days to make necessary modifications to the SSP. The ISCP will then review and make a final determination as to whether the SSP warrants the issuance of a letter of approval.

Thursday, April 14, 2016

OHSMS Components

Occupational Health and Safety Management Systems (OHSMS), according to the Chemistry & Industrial Hygiene Inc., establishes a systematic control of health and safety standards throughout the organization. This is a major component of corporate culture and promotes employee involvement at every level of operation. This provides outreach to all facilities and personnel. One objective of an organization is to advance the long-term risk management strategy. This can be achieved by implementing an OHSMS plan. This plan is also considered an effective tool to improve management control, reduce the incidence rate of injuries and illnesses,  and facilitate the implementation of corporate extensions concerning the management of workplace hazards and their associated risks.Once this plan is fully implemented, the management system should address all of an organization's unique processes and hazards as well as any future changes to those processes.


Diagram of how OHSMS works

According to Safetyworx, the components of an OHSMS program most likely will have all of the following: planning, implementation, measurement and evaluation, and management review and improvement. Planning initially includes setting objectives, targets, and establishing performance indicators to address the regular occurrence of hazards and developing the controls necessary to eliminate, isolate, or minimize the hazards in the facility or corporation. These procedures should be developed in such a way that they are used for continuing operations in the organization. Implementation is critical and adequate for the organization to achieve it's goals. Financial, human, and material resources are adequate in achieving success. Responsibilities must be defined and designated, withhold an effective reporting relationship between management, employees, contractors, subcontractors, and visitors. Having consultation and involvement of both management and employees will help establish common goals and facilitate the development and implementation of the organizations goals and objectives. Along with consultation, the training needs of the employees should be identified and procedures should be put in place to ensure the training is providing adequate information and is well documented. Measurement and evaluation is necessary for an OHSMS plan to make sure an organization is preforming adequately and the objectives are sought clearly. All details of the system, whether its positive or negative, must be recorded and available for all stakeholders to see. Audits must be conducted periodically and use for management review purposes whether they are internal or external. Accident investigations have the ability to examine the effectiveness of the OHSMS plan. These should be approached in such a way that the problem areas are identified as deficiencies in the system rather than apportioning blame. The management and review component of the OHSMS plan is essentially a foundation for an ongoing and effective system element that is necessary to make adjustments that will improve the effectiveness of the organization. This process can be strictly foreseen at the management level, or incorporate employee or other stakeholder representation. Some factors that are considered can include changes in legislation, different technologies, and lessons learned from OHS incidents and feedback from employees and stakeholders to name a few. 


The continual improvement cycle enables risk management processes to evolve and address new and changing workplace hazards. 

Wednesday, April 13, 2016

Quantitative Fit Testing

According to OSHA, a "fit" test tests the seal between the respirator's facepiece and the face of whom is wearing it. This test takes about fifteen minutes to complete and is performed at least annually. This type of test should not be mistaken for a user seal check. A user seal check is a quick check that is preformed by the wearer each time the respirator is put on. This test assures that the respirator is properly sealed to the face or needs to be readjusted. The two types of  respirator fit testing consists of qualitative and quantitative.

Quantitative fit testing is normally used for half-face respirators.These type of respirators only cover the mouth and nose. These are often filtering facepiece respirators that are called "N95s" and elastomertic respirators. This type of testing uses a machine to measure the actual amount of leakage into the facepiece and is not reliant on taste, smell, or irritation in order to detect leakage. The respirators in this testing will have a probe attached that will connect to a machine by a hose. There are three different type of quantitative fit testing methods that are accepted by OSHA: generated aerosol, ambient aerosol, and controlled negative pressure. These types of testing can be used for any type fitting respirator. Workers must wear personal protective equipment such as safety glasses and or earmuffs while preforming their job and if so, these workers must wear the same personal protective equipment (specific make, model, style, and size of the respirator) for completing the fit testing.


Quantitative Fit Testing Example


You must be fit tested before you use a respirator in the workplace and you must be retested every 12 months to see if the respirator you use still fits you. Not every respirator passes the fit test. If it fails, another make, model, and size must be tested in order to ensure that the respirator has a perfect seal. Employers must provide a reasonable variety of different respirators in order to ensure that the respirators of their workers are fitting properly. Knowing the make, model, and size as well as when and where you need to wear the respirators is important to ensure protection. The fit of the respirator must be retested whenever there is a change in physical conditions that could affect the way the respirators fit. These physical conditions include: large weight gain or loss, major dental work (such as new dentures), facial surgery that may have changed the shape of your face, and significant scarring in the area of the seal. These physical conditions can affect the way the respirator's ability of sealing the face properly. Any facial hair can affect the ability the ability of the respirator to protect you. Anything that comes in the way of the respirator's seal or gets into the valve can allow for contaminated air to leak in and cause less protection.


Advantages and Disadvantages of  Quantitative Fit Testing


Although fit testing can follow you from job to job, the current employer is fully responsible in ensuring the fit testing and recordkeeping requirements of OSHA are well recorded and documented . The employer must ensure that the respirator is appropriate for the hazards to your face, the respirator is properly cleaned, maintained, and stored, and the proper schedule for replacing cartridges and filters are allowed.

Process Safety Management (PSM)

Process Safety Management (PSM), according to Managing Hazardous Materials – A Definitive Text, is considered when applying management systems to identify, evaluate, and control process-related hazards with the goal of safe operation and maintenance of chemical processes. This applies to specific processes rather than entire facilities. A process is considered to be "any activity involving a highly hazardous chemical, including any use, storage, manufacturing, handling, or the on-site movement of such chemicals, or combination of these activities." Any process is subject to PSM standard if it could contain greater than a threshold quantity of a chemical listed in a standard. The PSM program elements include employee participation (availability to review processes and procedures), process safety information (must be revised and reviewed after every change in procedures), process hazard analysis (updated and revised to account for potential hazards associated with the new equipment), operating procedures (mandate steps for operators), operator training (requiring training and verification for new procedures), contractor management (installs new materials), pre-startup safety reviews (shutting down or starting processes), mechanical integrity (routine inspection of equipment), management of change (selecting and installing new nodes of materials or machinery that is effective and cost-friendly), hot work (brazing lines), incident investigation (investigating the portion of the process involved in an incident), emergency response (reviewing the response plan), audits (evaluates the whether the management of change program adequately addresses the changes made in the procedure), and trade secrets (involved in the business-confidential process). Each of these elements are critical in the overall success of Process Safety Management.


DuPont's Process Safety Management

The process safety information that must be documented must include chemical information ( hazards, properties, and reactivity/incompatability), process technology (process or blow flow diagrams, process chemistry, and safe operating limits), and process equipment (piping and instrumentation diagrams, materials of construction, and design codes and standards). 

Process Hazard Analysis (PHA) is considered a formal, team-based approach that helps evaluate the risks that are associated with chemical hazards, to identify procedures and equipment where the risks aren't adequately managed, and to make recommendations to correct these issues. Examples of PHA include checklists, what-if analysis, hazard and operability analysis, failure mode and effect analysis, and fault-tree analysis. The first technique mentioned uses a checklist comprised of pre-determined questions relevant to the system. This type of process safety analysis is most applicable to the early design of processes, relatively simple processes, or a process with which the facility or industry has extensive experience or knowledge. What-if analysis is used by team-brainstorming to determine and question the potential process failures the facility or industry might have. Hazard and operability uses guidewords to focus team discussions around specific deviations (high flow, low flow, or high temperature). Failure mode and effect analysis focuses on ways in which individual process components might fail. Fault-tree analysis focuses on top events first, such as an explosion, and then identifies potential combinations of events that could have led to the top event. This process uses AND and OR logic gates when discussing possible modes of events. This event gives the most quantitative analysis of event probabilities.

An OSHA-compliant PHA must be based on thorough process safety information and must be preformed by a multi-disciplinary team. A proper PHA must address the hazards of the process, administrative, and engineering controls, the consequence of failure of these controls, human factors, facility sitting, previous incidents, and the range of effects.

Pre-Startup Safety Reviews (PSSRs) ensure that the new or modified process is constructed to the appropriate design specifications, that the appropriate operating and emergency procedures are put in place, and that employee and contractor training has effectively been completed before the start-up. They also ensure that PHA's have been modified and subject to management-of-change programs and have been conducted on new processed as well.

The management of change evaluates proposed changes or alterations to processes to identify and address potential health and safety risks. These changes include adding new/different equipment, modifying the design, changing operation parameters, or using different material for construction. A change with grades of stainless steel in the facility or industry could be catastrophic if the chemical and hazards in the area if they are not able to process the chemical and its conditions.  

Tuesday, April 12, 2016

ANSI/AIHA Z10 Standard Objective

The ANSI/AIHA Z10 Standard, according to COVWC, is comprised of five elements that has been developed as a management tool or process that is used to ensure that safety and health programs  alike are continuously improving and complying to OSHA's General Duty Clause to provide a workplace "free from recognized hazards that are causing or likely to cause physical harm." The five elements of the ANSI/AIHA Z10 Standard include: management leadership and employee participation, planning, implementation and operation, evaluation and corrective action, and management review. These five elements along with the standard itself are best applicable to organizations that have relied on traditional methods and safety programs in the past.


ANSI/AIHA Z10 Standard Diagram


The first element, management leadership and employee participation, involves having strong leadership skills and a solid commitment with the upper management to enforce and ensure that the ANSI/AIHA Z10 Standards are being implemented accordingly. The management must develop a health and safety policy that is communicated to the employees and dated and signed to ensure that the information has been covered and everyone in the facility recognizes the procedure. The document policy must include protection and continuous improvement of employee health ans safety, effective employee participation, conformance of the organization's health and safety requirements, and compliance with applicable laws and regulations. Employee participation in the ANSI/AIHA Z10 Standard ensures that employees are personally responsible to comply with all health and safety rules and regulations established by the organization's management. Management must also give the employees the opportunity to participate in any safety related planning, implementation, evaluation, and corrective/preventive actions geared toward addressing hazards in the workplace. It is extremely important that management and employees, especially non-supervisory employees work together and have the ability to provide input to contribute to the OHSMS to ensure a successful standard objective. 

The planning process of the ANSI/AIHA Z10 standard is an important element when organizing and prioritizing OSHMS issues, establishing accurate and appropriate objectives, and devising a plan to reach those accurate and appropriate objectives. Proper planning should ideally include; thoroughly documenting and reviewing all processes and equipment to determine the risk factors involved, conducting hazard analysis to identify occurring and potential hazards and exposures as well as reviewing the frequency employees are exposed, and identifying hazard control methods and evaluating the potential severity of the hazard.  This document should include internal and regulatory policies and procedures, worker's compensation injury information, inspection/audit findings and reports, and any result from exposure monitoring conducted in the workplace. This element of the ANSI/AIHA Z10 Standard should be reviewed as an ongoing process rather than a one-time occurrence. 

The next element involving the ANSI/AIHA Z10 is the implementation and operation which applies specific controls and risk-reducing methods that implement a strong OHSMS. These controls include eliminating hazards, substituting less hazardous material for processes and equipment, engineering controls, warnings, and personal protective equipment (PPE). Personal protective equipment should be considered after all other methods have been implemented and reviewed. 


Cartoon describing the importance of safety compliance in the workplace


The evaluation and corrective action element should be conducted by the management of the organization. Audits, corrective actions, and follow-ups should be documented accordingly and should identify areas that are not compliant with the ANSI/AIHA Z10 standard. 

Lastly, management review is an important element of the ANSI/AIHA Z10 standard that involves annually reviewing important agency standards and safety programs and comparing them to identify and correct weak areas in an effort to improve the way processed and procedures are preformed as well as finding ways to decrease the frequency and severity of injuries in the workplace. With this review, it provides the organization with a clear understanding of the effectiveness of OHSMS and its impact on the business of the organization. By doing so, this shifts the focus of safety in the workplace to long-term solutions rather than one-time fixes as well as evaluating if an existing safety program needs improvement or if a new plan must be developed. 




Monday, February 15, 2016

Methane Gas Leak in Los Angeles

Right now, there is a methane leak in Los Angeles that is mixing with solar heat and producing formaldehyde. This formaldehyde is being consumed by the surrounding area population by inhalation. Because of the magnitude of this situation, it is important for emergency responders to have a plan set in place so employees, employers, the surrounding area, and the responders are conducting tasks safely when trying to eliminate the hazard. For this incidence, it is extremely important to have blue print copy of the surrounding land in order to plan when and where the boundaries employers can be located safetly. Employees and safety responders must suit up in a Self Containing Breathing Apparatus (SCBA) suit to promote safe and healthy air quality while working with methane and formaldehyde. Because formaldehyde is so dangerous when inhaled, safety responders must complete safety tasks in intervals of 15 minutes due to the REL's. There must not be any combustibles in the surrounding area, for this chemical is highly combustible and has a boiling point of -19.5 degrees Celcius. It also has a melting point of -92 degrees Celcius and a flash  point of 185 degrees Fahrenhieht. There should be a "safe zone" with an enclosed air tight end to ensure safety for employers and safety repsonders. This area can also be used for changing/replacing air tanks and providing fresh water and medical attention as needed. The medical examiners in the safe zone should also promote and complete biological testing. The research team should be composed of two parts; environmental aspects and community aspects. For environmental research, safety responders are devoted to air, water, and waste detecting and are solely responsible for making sure levels are controllable. They will conduct air quality testing as well as water quality testing in surrounding bodies of water. The community research aspect is responsible for conducting health surveys and researching the effect on reported cases of formaldehyde symptoms. In the surrounding area the hazards include methane, benzene, radon, formaldehyde, and sunlight. There must be Respiratory Protective Equipment (RPE) and Personal Protective Equipment (PPE) when dealing with any involvement in the area. GHS classification states that formaldehyde is toxic, causes cancer, skin irritation, it can be harmful if swallowed or inhabited, it is combustible and harmful to aquatic life. Formaldehyde is a colorless gas/liquid with a pungent odor, and can be sometimes white or solid. It is soluble in alcohol, ether, acetone, benzene, and water. It produces decomposition products that consist of carbon monoxide and dioxide. Its toxicity is acute oral toxicity of about 42mg/kg. The REL states that it is a suspected human carcinogen. It's short-term exposure consists of irritation to eyes and respiratory tract along with lung odema. The long-term exposure consists of inflammation of respiratory tract and dermatitis. The lower exposure limit is 7% and the higher exposure limit is 73%. There also needs to be radioactive protection from the exposure to formaldehyde due to radon exposure. Worker health effects and direct reading instruments are very important especially for this incidence in Los Angeles.

Methane leak in Los Angeles

Formaldehyde Exposure


OSHA Laboratory Standard vs. Other OSHA Standards

According to OSHA Laboratory Safety Guidance, over 500,000 workers are employed in laboratories in the United States. The laboratory can be a hazardous environment to work in, especially when employees are exposed to numerous potential hazards including biological, physical, and radioactive hazards. Muscular distresses are also considered hazardous. Laboratory safety has been regulated by OSHA over the years by publishing rules and guidelines which are regulated at the local, state, and federal regulation. These documents are intended for supervisors, principal investigators, and managers who are responsible for maintaining safe, healthy environments for all employees to work in.

Under Section 5(a)(1) of the Occupational Safety and Health Act of 1970, the General Duty Clause, requires that employers "shall furnish to each of his employees employment and a place of employment in which are free from recognized hazards that are causing death or serious physical harm to his employees." This indicates that even if the OSHA standard has not been promulgated that deals with a specific hazard or hazardous operations may be enforceable under the section 5 (a)(1) of the OSH Act. The principle OSHA standards cover the major hazards that workers are most likely to encounter on a daily basis. Employers must be fully award of the OSHA standards and must implement all aspects of standards that apply to specific work conditions in their facilities. Occupational health and safety professionals use a framework called the "hierarchy of controls" to select ways of dealing with workplace hazards. This strategy prioritizes intervention strategies based on the premise that the best way to control a hazard is to systematically remove it from the workplace, rather than relying on workers to reduce their exposure. The hierarchy of controls consists of: engineering controls, administrative controls, work practices, and personal protective equipment (PPE). Most employers use a combination of control methods. They must evaluate their own individual workplace to develop a plan for protecting their workers that may combine both immediate actions as well as longer term solutions.

The purpose of the Chemical Hygiene Plan (CHP) is to provide guidelines for prudent practices and procedures for the use of chemicals in the laboratory. The laboratory standards requires that the CHP sets forth procedures, equipment, PPE, and work practices capable of protecting workers from the health hazards presented by chemicals used in the laboratory. Each CHP must include Standard Operating Procedures (SOPs), Criteria for Exposure Control Measures, Adequacy and Proper Functioning of Fume Hoods, Information and Training, Requirement of Prior Approval of Laboratory, Medical Consultations and Examination, Chemical Hygiene Officer Designation, Particularly and Hazardous Substances.There are twenty-five states and two U.S territories that have their own OSHA-approved occupational safety and health standards, which must be at least "as effective as" the federal standards. The purpose of the laboratory standard is to ensure that workers in non-production laboratories are informed about the hazards of chemicals in their workplace and are protected from chemical exposures exceeding allowable levels The laboratory standard achieves this protection by establishing safe work practices in laboratories to implement a Chemical Hygiene Plan (CHP).

Applying OSHA Standard Precautions to the workplace.


Sunday, January 31, 2016

Physical and Chemical Properties of Materials

According to the Managing Hazardous Materials – A Definitive Text, there are physical hazards of materials, reaction hazards, and environmental hazards that contribute to the classification of hazardous properties of materials. 

Physical Hazards of Materials

Physical hazards of materials include engulfment, overpresssuration, & thermal hazards (cryogenic & compound gases).

Englufment is one physical hazard of materials that occurs when an individual becomes submerged or buried in the material. This is mostly common when an individual falls into a container of a material and when an individual in a confined space becomes flooded with said material. This type of physical hazard most commonly involves liquids and solids, but can sometimes involve gases. Where there are confined spaces, or in low areas where the gas vapor density is greater than air, it is possible for oxygen to be displaced and for engulfment to occur. 

Grain Engulfment Illustration

Overpressuration is mainly associated with gases or with any materials that may react in ways that can produce large amounts of gas. Containers can become overpressurized from a number of different reasons and may result in structural failure that can be violent and catastrophic. Thermal overpressuration is caused by the increase of ambient temperature around the container and often occurs during fires. The increase in temperature corresponds with the increase of pressure associated with a gas or vapor which can lead to pressures greater than the capability of the container can withstand.  Pressure failure can result from a damaged container and/or the container no longer has the strength to withstand the force exerted by the gas. A chemical or biological reaction can generate a gas resulting in an overpressuration incident. 

Reaction Hazards

Reaction hazards include fire, fuel requirements (liquid & solid), O2 requirements energy requirements, polymerization hazards, thermal decomposition, health hazards, radioactivity hazards, corrosive hazards, explosion hazards, water-reactivity/incompatibility, and worker protection standards.

Fire is considered a self-sustaining chemical reaction that produces energy in the form of heat and light. In order to obtain a fire, there must be a proper mixture of a fuel, oxidizer, and an energy source (such as a spark or a heat surface). This is often expressed as a fire triangle. 

Fire Triangle


Corrosive hazards, known as acids and bases, are considered the most common type of hazardous materials. They are able to harm many metals and even human tissue. This type of reaction hazard is most known for producing a local effect, but can also produce systemic effects and even pulmonary edema by inhalation. Acids are best described as a material that yields a hydrogen ion in water and a base is best described as a material that yields a hydroxide ion. When both are combined, they are neutralized. 

Polymerization is a process of combining monomers to form larger polymers. Because a given polymer has a wide distribution of lengths, and are usually identified by their relative weight or density, the process is usually accompanied with heat evolution. The speed of which monomers can be controlled by the addition of a catalyst. 

Environmental Hazards

Environmental hazards include bioaccumulating/bioconcentrating, warning properties, and geneology. 

Bioaccumulation occurs when toxic materials are ingested or absorbed by a species and are not detoxified or eliminated. As the species continues to absorb the contaminated material, the concentration of the toxins in the body increases. As a creature of higher species consumes a creature of lower species, they assume the toxic burden. 


Bioaccumulation Diagram

Material "Geneology" is an addition to interpreting the physical properties, chemical properties, nuclear properties and reactivity of the pure material to find the underlying issues associated with the original production and purification of the material as well as how the material will age. 

Sunday, January 24, 2016

OSHA Lab Safety Standards: The Major Components

OSHA, the Occupational Safety and Health Administration federal agency, is regulated under the Department of Labor in all states and territories. Under the General Duty Clause-29CFR1903.1, OSHA requires that employers must free of organized hazards that are causing, or are likely to cause death or serious physical harm to employees. These employers must comply with occupational safety and health standards promulgated under the Williams-Steiger Occupational Safety and Health Act of 1970. The Emergency Temporary Standards, which is under the Section 6 (c) (1) OSHA Act, OSHA can issue an emergency temporary standard (ETS) if the Secretary determines that "employees are exposed to a grave danger from exposure to substances or agents....; and that such emergency standard is necessary to protect employees from the danger." When OSHA conducts its inspections, there is no advance notice, unprogrammed, imminent danger, fatality or catastrophe, complaint or referrals, and is programmed when it is based on criteria such as an industry with high employee industry rates.

Complaint vs. Referral

According to OSHA regulations, a complaint is referred to as a notice of an alleged hazard given by past or present employee, a representative of the employee, or a concerned citizen. Complaints are considered more formal and must meet the complaint criteria (OSHA7 form). Serious complaints must be inspected within 30 days of filling and non-serious complaints are filed within 120 days. A referral is considered to be a notice of an alleged hazard or violation of the Act given by any source not included above, such as the news media. 

A Typical OSHA Inspection

During a typical OSHA inspection, there is an opening conference, presentation of credentials, there is an employer/employee representative present, a walk-through inspection, sample collection, and a closing conference. OSHA will grant citations if there is imminent danger, criminal/willful danger, other-than-serious, and egregious situations. Fines can range from $7,000 - $500,000 and can include imprisonment for situations with fatalities.

Figure 1


OSHA inspection flow chart

Who is Exempt from OSHA?

Anyone who is self-employed, has a family owned and operated farm, regulations supported by other agencies and/or laws, and Federal/State employees. 

OSHA Information and Training

(http://safex.us/Did-You-Know/Compliance-Updates)

Statistics on workplace fatalities
Employees are required to be informed of hazard communication, which informs of hazards that can be within the laboratory setting, They also frequently trained, they begin and receive this information before working and prior to new exposures, and review periodically for a refresher. Some information items include: OSHA lab standard content, location and availability of CHP, applicable PEL's and other exposure limits, sign and symptoms of exposure, and location of hazard reference materials. Training items include: hazard recognition methods, physical/health hazards in the lab, the use of PPE and hazard control, and content of CHP. 

What's a Chemical Hygiene Plan?

They are standard operating procedures, They are relevant to safety and health of employees and contain specific steps and general rules professionals must follow. They are the employer's criteria for determining and implementing control measures, engineering controls, PPE (Personal Protection Equipment), and safe work and clean hygiene practices. Additional protection is required for particular select carcinogens that are regulated by OSHA and listed by the National Toxicology Program  as "known carcinogen" or "reasonably anticipated to be carcinogen" and known by the the International Agency for Research on Cancer as "carcinogenic to humans" or "reasonably anticipated to be carcinogen." This includes reproductive toxins, mutagens, teratogens, and acutely toxic materials. 

Sunday, January 17, 2016

Dupont Corporation, C-8, and the Ethical Violations Involved

The Story


Located near the Ohio Valley, lies a multi-billion dollar corporation plant where the controversy created sounds like a story line out of a scary movie. DuPont, which is a chemical corporation founded in 1802, has been knowingly disposing of a toxic chemical called C8 for over five decades. The outcome of disposing C8 has been nothing but bad news -- causing numerous people in the area to become extremely ill and developing cancers such as testosterone cancer, prostate cancer, and even birth defects.

The Dry Run Landfill near Parkersburg, WV.

Near the landfill owned and operated by DuPont in Parkersburg, WV, the corporation had contaminated the drinking supply for a nearby farmer by the disposing of green water with bubbles on the surface, had contributed to deformed behaviors and body parts of the farmer's cattle, and the increase in deaths of his cattle supply. According to The New York Times Magazine, "The Lawyer Who Became DuPont's Worst NIghtmare", Rob Bilott, a former defense attorney for eight years, filed a federal lawsuit against DuPont in the summer of 1999. Three veterinarians chosen by DuPont and three chosen by the E.P.A. were sent to the farm near the landfill to investigate the cattle's health conditions. Their reports did not find DuPont responsible and described their conditions as inadequate care provided by the Tennants. The surrounding community began to antagonize the Tennants of the farm for their distrust in the corporation, which followed with the loss of lifelong friends.

DuPont then began to refuse the documentation of the chemical C8 (referred to as PFOA by the government) that was found at the landfill site. Since 1951, this chemical has been used and has not been classified by the government as a hazardous substance. DuPont stated in its own instructions that it was not going to be flushed into surface water or sewers, yet over the next few decades, over a hundred thousand pounds of the C8 chemical powder was flushed through the pipes of Parkersburg facility to the Ohio River. This eventually entered the local water table, which supplied drinking water to neighboring communities of more than 100,000 people in total.

Bilott eventually learned that DuPont began conducting secret medical studies on C8 for over four decades. In the year 1961, the researchers at DuPont found that the chemical could increase the size of the liver in rats and rabbits; they repeated the study a year later in dogs and replicated their results. In the 1970's the researched then found that there were high concentrations of C8 in the blood of factory workers at the Washington Works plant near Parkersburg, WV. DuPont did not disclose this information to the E.P.A at the time. In 1981 after 3M (the inventor of C8 four years before DuPont began utilizing it) released that the ingestion of the substance caused birth defects in rats. After they released this information, DuPont tested the children of pregnant employees and of seven births, two children had eye defects. DuPont did not release this information to the public. By the late 1980's DuPont began to express concern about the health effects of the C8 chemical and decided they needed to find a landfill for the toxic sludge dumped on the company property. Fortunately, they recently bought 66 acres of land that was eventually renamed the Dry Run Landfill.

By the 1990's, Bilott discovered that DuPont understood that C8 caused testicular cancer, pancreatic and liver tumors in lab animals. Also by this time, DuPont had dumped 7,100 tons of C8 sludge into the Dry Run Creek. DuPont did not disclose the levels of C8 to the Tennants of the farm at the time of discovery, nor did they disclose it in the cattle report that was commissioned for the Tennant's case a decade later. In 2001, Bilott sent his entire case file of DuPont's use of C8 and his Tennant's case to the E.P.A and DuPont responded quickly by requesting a gag order to block Bilott from providing the information he discovered to the government. C8 was only one of more than 60,000 synthetic chemicals that companies produced and released without regulatory oversight.

Under the 1976 Toxic Substances Control Act, the E.P.A. can test chemicals only when they are provided evidence of harm. In 2005, four years after the letter by Bilott was read, DuPont reached a $16.5 million settlement with the E.P.A., which accused the corporation of concealing its knowledge of the toxicity and presence of C8 in the environment in violation to the Toxic Substances Control Act, mentioning that DuPont wasn't required to admit liability of this occurrence. This fine represented less than two percent of the total profits earned by DuPont on C8 that year.

The next step for Bilott was to file a class-action lawsuit against DuPont on behalf of everyone who has been affected by the toxic chemical with tainted drinking water. DuPont had told its workers that the C8 was causing health problems for women and birth defects in children. A woman named Darlene, with an ex-husband who worked at the DuPont factory, faced complications with hysterectomy's occurring six years apart. In 2002, the agency released its initial findings that the chemical C8 might pose human health risks to those drinking tainted water and to the general public (anyone who cooked with Teflon pans since C8 is a major chemical used in the production). In 2004, DuPont decided to settle a class-action suit. It agreed to install six filtration plants in the affected districts and pay a cash reward of $70 million. This would fund a study to determine whether or not there was a "probable link" between the C8 chemical and any other diseases. If there was a correlation, DuPont was responsible for paying medical monitoring of the affected group. Class members were forbidden from filing any personal-injury suits against DuPont. Bilott and his team had received $21.7 million in fees from the settlement. As much of a settlement this was for years of research Bilott didn't stop there.

There was a considerable gap in the data that Bilott had found. The health studies conducted by DuPont were limited to factory employees. After discovering the gap in data, his team pushed to make receipt of the cash reward contingent on full medical examination. The class voted in favor of this approach and in a few months, nearly 70,000 people near the area were trading in blood testing of C8 for a $400 check. Twelve studies were designed by scientists to determine exactly how much C8 each class member had ingested. Because DuPont was responsible for the funding of the research without limitation, it costed them $33 million. Seven years later, in 2011, scientists began to release their findings as a "probable link" between C8 and kidney cancer, testicular cancer, thyroid disease, high cholesterol, pre-eclampsia, and ulcerative colitis.

As of October 2015, 3,535 plaintiffs have filed personal-injury lawsuits against DuPont. As part of its agreement to the E.P.A., DuPont has stopped production and use of C8 since 2013.  In May of 2015, 200 scientists from a variety of disciplines signed the Madrid statement, stating that the production of all fluorochemicals, including te replaced C8 chemicals interfere with human reproduction and metabolism and cause cancer, thyroid problems, and nervous-system disorders. DuPont disagrees with the Madrid Statement. In 2009, the E.P.A. set a "provisional" limit of 0.4 parts per billion for the short-term exposure, but has never finalized that figure. This means that local water districts are not under any obligation to tell customers whether or not C8 is in their drinking water. The E.P.A stated that it will release a lifetime health advisory level for C8 by early 2016, yet this doesn't effect those who already have the C8 in their blood, especially for those with multiple generations who have either worked or lived near the DuPont plant or landfill almost their entire life. Most residents appear to not know that their water levels are highly contaminated with C8  in the Parkersburg area. Scientists have found that C8 is common in many types of fish, pelicans, sea turtles, bald eagles, sea lions, and albatrosses.

Bilott doesn't regret fighting DuPont for the last 16 years. He is currently working on the second personal-injury case against DuPont.

The Ethics

On many levels, this incident with DuPont has violated not one, but many levels of ethics while using the toxic chemical C8 for the production of Teflon and other products. The violation of ethics includes, but is not limited to, personal, professional, community, corporate, federal, state, and occupational levels. Although all levels of ethical violations are wrongfully done in this disastrous situation, violating ethics on a professional level is a controversial issue when talking about the case of DuPont and C8. 

Professionals such as lawyers and doctors/veterinarians are comprised with their own ethical code of conduct that is expected to be followed in order to properly perform at a level of professionalism. With the actions made by DuPont in this scandal, professional level ethical codes are violated and conflicted by personal moral codes and consistently affect others on an individual level and on other levels of ethics. 

In this case, lawyers are expected to follow a professional ethical code to understand what is definitively right and wrong in a situation presented upon them. As far as Bilott's level of professional ethics, he evaluated his personal ethical code to consult with the victims of the wrong-doings made by DuPont and made a decision in order to provide the victims affected by the use of C8 and the contamination of their drinking water an answer that they deserved to hear and hopefully receive accommodations for the suffering that the community near Parkersburg has been enduring for over five decades. 

As far as the ethical violations among the doctors/veterinarians, medical ethics in serving the community near Parkersburg where effected greatly. As a medical professional, you are responsible for following medical ethics. Medical professionals must act for the best interest in the patient, and are allowed to ethically decline a patient-physician relationship before it has been established. In the case of DuPont, all veterinarians in the area technically followed their professional ethics stated ensured for medical professionals, but with the knowledge of the condition of the patients and the animals effected with C8 by information from the corporation, the conclusion of medical care was limited based on the influence that DuPont had within the community. If stipulations were different and personal morals and ethics were proposed more influential on the decisions these professionals had to make, the severity of the damage and outcome of the C8 exposure in drinking water may have been treated differently and DuPont's five decade long use of this chemical and the effect it's had on the area of Parkersburg and surroundings may have resulted in a different outcome.