Canada announced on January 9, 2015, that the New Substances Program has published six new risk assessment summaries for chemicals and polymers, including a summary for multi-wall carbon nanotubes. See http://www.ec.gc.ca/subsnouvelles-newsubs/default.asp?lang=En&n=4BCC7425-1 Environment Canada and Health Canada conduct risk assessments on new substances. These assessments include consideration of information on physical and chemical properties, hazards, uses, and exposure to...
Category: Risk Assessment Issues
January 13, 2015
EPA Announces New Draft Guidance on Reducing Use of Lab Animals and Increasing Relevant Acute Toxicity Data on Pesticides
On January 9, 2015, the U.S. Environmental Protection Agency’s (EPA) Office of Pesticide Programs (OPP) announced that it released a new draft guidance document in its effort to help expand the acceptance of alternative methods for acute toxicity testing. EPA states that the rapid advances in science and continual development of new technologies, it recognizes there is an increasing potential for the use of alternative methods in regulatory risk assessments. EPA’s goals for alternative...
January 8, 2015
EPA’s Recently Released Revised Human Health Risk Assessment for Chlorpyrifos Reflects New Implementation of EPA Policy
The U.S. Environmental Protection Agency’s (EPA) January 5, 2015, release for public comment of the revised human health risk assessment of chlorpyrifos (http://www.regulations.gov/#!documentDetail;D=EPA-HQ-OPP-2008-0850-0195) reflects another step taken to implement its new spray drift and volatilization policies. These policies were long in the making and the subject of significant discussion and controversy over the years. EPA, with this assessment, has also taken a very public step to...
December 22, 2014
Lynn L. Bergeson, “EPA’s New, Final Work Plan Assessments And What They Mean To You,” Environmental Quality Management, December 22, 2014.
The United States Environmental Protection Agency (EPA) released on June 25, 2014, and on August 28, 2014, final risk assessments for targeted uses of four Toxic Substances Control Act (TSCA) Work Plan chemicals. The June Assessment consists of certain uses of trichloroethylene (TCE), and the assessments released in August are for uses of methylene chloride or dichloromethane (DCM), antimony trioxide (ATO), and 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-[γ]-2-benzopyran (HHCB). The...
On October 22, 2014, the U.S. Environmental Protection Agency (EPA) requested public comment on a proposal to remove 72 chemicals from its list of substances approved for use as inert ingredients in pesticide products. EPA reportedly is responding to petitions submitted by the Center for Environmental Health, Beyond Pesticides, Physicians for Social Responsibility, and others that have asked EPA to issue a rule requiring disclosure of 371 inert ingredients found in pesticide products. EPA...
The U.S. Environmental Protection Agency (EPA) released on August 28, 2014, final risk assessments for three Toxic Substances Control Act (TSCA) Work Plan chemicals -- methylene chloride or dichloromethane (DCM), antimony trioxide (ATO), and 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8,-hexamethylcyclopenta-[γ]-2-benzopyran (HHCB). The much anticipated release of these assessments marks a real milestone for EPA's Office of Chemical Safety and Pollution Prevention (OCSPP), and EPA is to be commended for...
April 16, 2014
ECHA Planning Workshop on Regulatory Challenges in the Risk Assessment of Nanomaterials
The European Chemicals Agency (ECHA) will hold a topical scientific workshop on October 23-24, 2014, on regulatory challenges in the risk assessment of nanomaterials. The workshop will bring together experts in the field of risk assessment of nanomaterials to discuss and update scientific principles and guidelines for assessing human health and environmental risks of chemicals substances in nanoform. According to ECHA, the workshop will also provide a platform for academia...
November 26, 2013
Lynn L. Bergeson, “Narrow Critique Does Not Alter EPA Nano Risk Assessment,” Law360, November 26, 2013.
When the Natural Resources Defense Council sued the U.S. Environmental Protection Agency immediately after the EPA conditionally registered HeiQ AGS-20 and AGS-20 U nanosilver pesticide products, the nano community collectively held its breath. On Nov. 7, 2013, that same community let out a collective sigh of relief as the U.S. Court of Appeals for the Ninth Circuit largely upheld the EPA’s approach under the Federal Insecticide, Fungicide and Rodenticide Act in registering the first...
The U.S. Environmental Protection Agency (EPA) posted on September 30, 2013, a final report entitled Comprehensive Environmental Assessment Applied to Multiwalled Carbon Nanotube Flame-Retardant Coatings in Upholstery Textiles: A Case Study Presenting Priority Research Gaps for Future Risk Assessments.
The U.S. Environmental Protection Agency (EPA) posted on September 30, 2013, a final report entitled Comprehensive Environmental Assessment Applied to Multiwalled Carbon Nanotube Flame-Retardant Coatings in Upholstery Textiles: A Case Study Presenting Priority Research Gaps for Future Risk Assessments.