On June 30, 2011, U.S. Environmental Protection Agency (EPA) Administrator Lisa Jackson signed a proposed rule seeking to narrow certain recycling exemptions under the Resource Conservation and Recovery Act's (RCRA) "Definition of Solid Waste" (DSW) provisions. The rule should be published in the Federal Register within the next two weeks. A pre-publication copy of the rule and related information can be accessed online. EPA will accept comments on the rule for 60 days after it is...
Category: Metals and Mining
The U.S. Environmental Protection Agency (EPA) released on June 9, 2011, a pre-publication copy of a forthcoming Federal Register notice describing several possible approaches for obtaining certain additional information on the composition of pesticide products. EPA focuses particularly on information about what nanoscale materials are present in registered pesticide products, and defines "nanoscale material" as "an active or inert ingredient and any component parts thereof intentionally...
April 26, 2011
Scientists Investigate Behavior of Metallic Silver Nanoparticles in a Pilot Wastewater Treatment Plant
Environmental Science & Technology posted on April 5, 2011, an article entitled “Behavior of Metallic Silver Nanoparticles in a Pilot Wastewater Treatment Plant.” The abstract states: We investigated the behavior of metallic silver nanoparticles (Ag-NP) in a pilot wastewater treatment plant (WWTP) fed with municipal wastewater. The treatment plant consisted of a nonaerated and an aerated tank and a secondary clarifier. The average hydraulic retention time including...
April 25, 2011
Study Assesses Exposure in Workplaces Manufacturing Nanosized Titanium Dioxide and Silver
Inhalation Toxicology has published an article entitled “Exposure assessment of workplace manufacturing nanosized TiO2 and silver,” which monitored the possible exposure to nanoparticles at workplaces that manufacture nano-titanium dioxide (TiO2) and nano-silver. The abstract states: To estimate the potential exposure of workers, personal sampling, area monitoring, and real-time monitoring using a scanning mobility particle sizer (SMPS) and dust monitor were conducted at...
On December 21, 2010, the California Department of Toxic Substances Control (DTSC) issued a much anticipated data call-in (DCI) for information regarding analytical test methods, and other relevant information, from manufacturers of nano silver, nano zero valent iron, nano titanium dioxide, nano zinc oxide, nano cerium oxide, and quantum dots.
January 11, 2011
BCCM Working with BASF to Create Consortium to Respond to CDTSC DCI
B&C Consortia Management, L.L.C. (BCCM) is working with BASF Corporation (BASF) to create a consortium to provide the California Department of Toxic Substances Control (CDTSC) information on analytical methods that could be used to measure certain nanoscale materials in air, surface water, and soil. The collaborative project will involve adapting known methods used to measure these substances in other media to the analysis of environmental media. The term of the consortium will be at...
December 22, 2010
CDTSC Issues DCI for Nano Metals, Nano Metal Oxides, and Quantum Dots
On December 21, 2010, the California Department of Toxic Substances Control (CDTSC) issued a data call-in (DCI) for information regarding analytical test methods, and other relevant information, from manufacturers of nano silver, nano zero valent iron, nano titanium dioxide, nano zinc oxide, nano cerium oxide, and quantum dots. According to CDTSC, Health and Safety Code Section 57018(a)(4) defines a “manufacturer” as a “person who produces a chemical in this state or imports a chemical...
The U.S. Environmental Protection Agency (EPA) announced in a November 4, 2010, Federal Register notice the availability for public review and comment of a draft guidance document entitled, "Weight-of-Evidence Guidance Document: Evaluating Results of EDSP Tier 1 Screening to Identify Candidate Chemicals for Tier 2 Testing." According to EPA, the purpose of the draft guidance document is "to set forth some general principles, criteria, and considerations EPA generally believes to be...
On September 22, 2010, the California Department of Toxic Substances Control (CDTSC) and the U.S. Environmental Protection Agency (EPA) held a public workshop on state and federal nanomaterial activities. During the workshop, CDTSC and EPA discussed the results of California’s data call-in (DCI) for carbon nanotubes (CNT), its plans for future DCIs, and EPA’s efforts related to CNTs. The candidate chemicals for CDTSC’s second DCI, which it intends to issue this Fall, include...
September 28, 2010
Nanotech Companies Told to Expect Three Rule Proposals in Early 2011
The September 28, 2010, issue of BNA Daily Environment Report quotes Lynn L. Bergeson regarding state regulatory initiatives, including the California Department of Toxic Substances Control's (DTSC) intent to issue data call-ins (DCI) for nanometal oxides and quantum dots.