Environmental Protection Agency 33/50 initiative

The Toxic Substances Control Act (TSCA) was enacted in 1976 to identify and control toxic chemical ha2ards to human health and the environment. One of the main provisions of TSCA was to estabUsh and maintain an inventory of all chemicals in commerce in the United States for the purpose of regulating any of the chemicals that might pose an unreasonable risk to human health or the environment. An initial inventory of chemicals was estabhshed by requiring companies to report to the United States Environmental Protection Agency (USEPA) all substances that were imported, manufactured, processed, distributed, or disposed of in the United States. Over 50,000 chemical substances were reported. PoUowing this initial inventory, introduction of all new chemical substances requires a Premanufacturing Notification (PMN) process. To be included in the PMN are the identity of the new chemical, the estimated first year and maximum production volume, manufacture and process information, a description of proposed use, potential release to the environment, possible human exposure to the new substance, and any health or environmental test data available at the time of submission. In the 10 years that TSCA has been in effect, the USEPA has received over 10,000 PMNs and up to 10% of the submissions each year are for dyes (382)... 

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) [42 U.S.C. 9601 et seq.], as amended by the Superfund Amendments and Reauthorization Act (SARA) [Pub. L. 99 99], requires that the Agency for Toxic Substances and Disease Registry (ATSDR) develop jointly with the U.S. Environmental Protection Agency (EPA), in order of priority, a list of hazardous substances most commonly found at facilities on the CERCLA National Priorities List (NPL) prepare toxicological profiles for each substance included on the priority list of hazardous substances and assure the initiation of a research program to fill identified data needs associated with the substances. 

Analytical methods for parent chloroacetanilide herbicides in soil typically involve extraction of the soil with solvent, followed by solid-phase extraction (SPE), and analysis by gas chromatography/electron capture detection (GC/ECD) or gas chromatog-raphy/mass spectrometry (GC/MS). Analytical methods for parent chloroacetanilides in water are similarly based on extraction followed by GC with various detection techniques. Many of the water methods, such as the Environmental Protection Agency (EPA) official methods, are multi-residue methods that include other compound classes in addition to chloroacetanilides. While liquid-liquid partitioning was used initially to extract acetanilides from water samples, SPE using... 

USEPA (2007) Sustainable materials management materials management and the 3Rs Initiative. Environmental Protection Agency (USEPA). http //www.hepa.gov/oswer/intemational/ factsheets/ndpm-3rs-initiative-and- materialsmanagement.html. Accessed 10 Apr 2011... 

Frumkin and Solomon, 1997). The proposal was initially turned down by the US Environmental Protection Agency, but has since been approved on appeal (Davis, 1999). With the recent recognition of the serious condition known as road rage, we can do very well without a fuel petrol supplement that might raise brain Mn levels leading to even more aggressive behaviour. 

U ren, S.C. 1983. Acute toxicity of bis(tributyltin)oxide to a marine copepod. Mar. Pollut. Bull. 14 303-306. U.S. Environmental Protection Agency (USEPA). 1986. Initiation of a special review of certain pesticide products containing tributyltins used as antifoulants availability of support document. Federal Register 51(5) 778-779. 

U.S. Environmental Protection Agency (USEPA). 1976. Substitute Chemical Program. Initial Scientific and Minieconomic Review of Carbofuran. EPA Rep. 540/1-76-009. 187 pp. 

During the 2002 World Summit on Sustainable Development (WSSD), the U S. National Academies, the U.S. Environmental Protection Agency, and the American Chemistry Council announced a new initiative to facilitate better communication among scientists, policymakers, and other decisionmakers so that scientific knowledge more effectively informs public policy and private sector decisions relating to sustainability in developing countries. More specifically, the goals of the initiative are ... 

XZ/N VI RON MENTAL APPLICATIONS OF CHEMOMETRics are of interest because of the concern about the effects of chemicals on humans. The symposium upon which this book is based served as an important milestone in a process we, the editors, initiated in 1982. As members of the Environmental Protection Agency s Office of Toxic Substances (OTS), we have responsibilities for the acquisition and analysis of human and environmental exposure data in support of the Toxic Substances Control Act. OTS exposure studies invariably are complex and range from evaluating human body burden data (polychlorinated biphenyls in adipose tissue, for example) to documenting airborne asbestos levels in schools. 

Environmental Protection Agency (22). Figure 1 is a plot of the sediment/aqueous concentration ratio versus time for this system. It is characterized by a rapid sorption process and a much slower sorption process which does not reach equilibrium until about 10 days after initial mixing of the sediment and chlorpyrifos solution. 

The collaboration of two research groups on this drinking water project was brought about through the intervention of Cornell s Center for Environmental Research. The Initial seed money provided helped to lay the groundwork for the more ambitious project now being supported by the United States Environmental Protection Agency. Major research objectives of the project Included ... 

---