All Knowledge & Insights By Date

The Environmental Defense Fund (EDF) published a blog item on February 22, 2024, announcing its Chemical Exposure Action Map, a tool “designed to spur the Environmental Protection Agency (EPA) to transform the assessment of risks posed by toxic chemicals in our communities.” EDF states that the map focuses on multiple high-priority chemicals, highlighting the potential for cumulative risks. EDF notes that when conducting risk assessments under the Toxic Substances Control Act (TSCA), EPA...

On August 22, 2023, the U.S. Environmental Protection Agency (EPA) published ChemExpo, a free, publicly available search and visualization tool for exploring chemical use data relevant to exposure assessment that has been curated from public documents. According to EPA, the interactive web application focuses on data collected by EPA about how chemicals are used in commerce and how they occur in consumer and industrial products. EPA notes that under the Toxic Substances Control Act...

On July 25, 2023, the U.S. Environmental Protection Agency (EPA) issued a final rule regarding the reporting and recordkeeping requirements for asbestos under the Toxic Substances Control Act (TSCA). 88 Fed. Reg. 47782. EPA states in its July 6, 2023, press release that under the reporting rule, manufacturers (including importers) or processors of asbestos between 2019 and 2022 with annual sales above $500,000 in any of those years are required to report exposure-related information,...

The U.S. Environmental Protection Agency (EPA) announced on October 28, 2022, that it awarded $748,180 in research grant funding to three institutions for research to improve understanding of how people are exposed to per- and poly-fluoroalkyl substances (PFAS) in several communities throughout the country. EPA states that there is evidence that continued exposure above specific levels to certain PFAS may lead to adverse health effects. According to EPA, more data are needed to measure...

The U.S. Environmental Protection Agency (EPA) announced on May 19, 2022, the availability of the meeting minutes and final report for the March 15-17, 2022, Science Advisory Committee on Chemicals (SACC) virtual meeting regarding EPA’s proposed Screening Level Approach for Assessing Ambient Air and Water Exposures to Fenceline Communities Version 1.0 under the Toxic Substances Control Act (TSCA). According to the meeting minutes and final report, SACC “agreed that the methodological...

On March 15-17, 2022, the U.S. Environmental Protection Agency (EPA) held a meeting of the Science Advisory Committee on Chemicals (SACC) to peer review EPA’s “Draft TSCA Screening Level Approach for Assessing Ambient Air and Water Exposures to Fenceline Communities Version 1.0” (screening methodology). As reported in our January 24, 2022, memorandum, EPA will use the screening methodology to evaluate potential chemical exposures and associated potential risks to fenceline communities...

The U.S. Environmental Protection Agency (EPA) has reopened the online dockets for 20 high-priority substances. According to the December 9, 2021, memorandum authorizing the re-opening of the dockets, EPA is re-opening these dockets to receive use, hazard, exposure, and any other information that can help inform their risk evaluations. Information must be submitted by June 9, 2022, when EPA will close the dockets. Information submitted to the docket should be identified by the...

The Organization for Economic Cooperation and Development (OECD) recently published the following reports: Evaluation of Tools and Models Used for Assessing Environmental Exposure to Manufactured Nanomaterials; Functional Assessment and Statistical Analysis of Nano-Specific Environmental Exposure Tools and Models: The objective of the project was to compile available tools and models for the assessment of environmental exposure to manufactured nanomaterials and to conduct an analysis of their...

On August 31, 2021, the U.S. Environmental Protection Agency (EPA) released the final scope documents for the Toxic Substances Control Act (TSCA) risk evaluations of diisodecyl phthalate (DIDP) and diisononyl phthalate (DINP). 86 Fed. Reg. 48695; 86 Fed. Reg. 48693. In its August 31, 2021, press release, EPA notes that both DIDP and DINP “belong to a family of chemicals called phthalates and are commonly used as plasticizers in the production of plastic and...

The U.S. Environmental Protection Agency (EPA) announced on August 6, 2021, that it will provide $9,272,545 in funding to seven institutions for research to estimate better children’s chemical exposures from soil and dust ingestion. According to EPA, the research will focus on improving estimates of children’s ingestion rates of chemicals such as lead, mercury, polychlorinated biphenyls (PCBs), and asbestos. EPA states that “[a]ccurate, comprehensive measurements of soil and dust...

The U.S. Environmental Protection Agency (EPA) announced on July 27, 2021, that it will provide $3.8 million in funding to create two EPA Science to Achieve Results (STAR) Centers for Early Lifestage Vulnerabilities to Environmental Stressors. The centers will focus on early lifestage exposures to chemicals and non-chemical environmental stressors and how these exposures may impact early childhood developmental health. EPA states that scientific research suggests that exposures to...

On July 27, 2021, the U.S. Environmental Protection Agency’s (EPA) Office of Chemical Safety and Pollution Prevention (OCSPP) will hold a public meeting to engage with interested stakeholders on the development of a proposed rule for implementing a tiered data collection strategy to help inform EPA’s prioritization, risk evaluation, and risk management activities for chemical substances or mixtures under the Toxic Substances Control Act (TSCA). According to EPA, it currently...

As reported in our March 9, 2021, blog item, the U.S. Environmental Protection Agency (EPA) announced on March 8, 2021, that “in accordance with Biden-Harris Administration executive orders and directives,” it is asking for additional public input on five final rules for persistent, bioaccumulative, and toxic (PBT) chemicals issued on January 6, 2021, under the Toxic Substances Control Act (TSCA).  On March 16, 2021, EPA announced that comments on the final rules are...

The U.S. Environmental Protection Agency (EPA) announced on March 8, 2021, that “in accordance with Biden-Harris Administration executive orders and directives,” it is asking for additional public input on five final rules for persistent, bioaccumulative, and toxic (PBT) chemicals issued on January 6, 2021, under the Toxic Substances Control Act (TSCA).  EPA states that as a first step in its efforts to review these rules immediately, EPA is opening a 60-day comment period for...

Innovations in agricultural chemicals have revolutionized and enhanced food production, but with progress come new challenges.  Agricultural chemicals can have widespread impacts on ecosystems and human health, and marginalized communities -- children and farmworkers in particular -- can be especially vulnerable.  Manufacturers, regulatory agencies, public health experts, and nonprofit organizations are working to address these challenges head-on by developing new products and devising robust...

On September 4, 2019, the U.S. Environmental Protection Agency’s (EPA) Office of Pesticide Programs’ Environmental Fate and Effects Division (EFED) announced that the next Environmental Modeling Public Meeting (EMPM) will be held on October 16, 2019.  The EMPM is a semi-annual public forum for EPA, pesticide registrants, and other stakeholders to discuss current issues related to modeling pesticide fate, transport, and exposure for risk assessments in a regulatory...

On July 29, 2019, the U.S. Environmental Protection Agency (EPA) published in the Federal Register its proposed rule intended to reduce exposures to certain chemicals that are persistent, bioaccumulative, and toxic (PBT).  84 Fed. Reg. 36728.  EPA identified five chemicals pursuant to Section 6(h) of the Toxic Substances Control Act (TSCA):  decabromodiphenyl ether (DecaBDE); phenol, isopropylated phosphate (3:1) (PIP (3:1)), also known as tris(4-isopropylphenyl) phosphate;...

The House Energy and Commerce Subcommittee on Environment and Climate Change announced on March 6, 2019, that it will hold a hearing on March 13, 2019, on “Mismanaging Chemical Risks:  EPA’s Failure to Protect Workers.”  The Subcommittee will address how the U.S. Environmental Protection Agency (EPA) “is systemically ignoring worker risks in its implementation of the Frank R. Lautenberg Chemical Safety Act and other worker protections.”  Energy and Commerce Chairman Frank Pallone,...

The Federal Advisory Council on Occupational Safety and Health (FACOSH) met on May 3, 2012, during which it discussed the use of occupational exposure levels (OEL) by the federal government. Because the Occupational Safety and Health Administration’s (OSHA) permissible exposure limits (PEL) have remained unchanged since their adoption on May 29, 1971, and do not account for advances in technology or the latest data, FACOSH asked its Emerging Issues Subcommittee to analyze federal...

Last month, Bayer Material Science (BMS) announced that it derived an occupational exposure limit (OEL) of 0.05 milligrams per cubic meter (mg/m3) for Baytubes, BMS multi-wall carbon nanotubes. According to BMS, “[t]he latest results of sub-chronic inhalation studies support the conclusion that Baytubes act like poorly soluble particles.” BMS derived the OEL based on previous single and recent repeated inhalation studies. BMS states: “All relevant information...