Environmental Protection Agency description

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)... 

Perrv, S. G., Bums, D. J., Adams, L. A., Paine, R. J., Dennis, M. G., Mills, M. T., Strimaitis, D. G., Yamartino, R. J., and Insley, E. M., "User s Guide to the Complex Terrain Dispersion Model plus Algorithms for Unstable Conditions (CTDMPLUS)," Vol. I "Model Description and User Instructions," EPA/600/8-89/041, U.S. Environmental Protection Agency, Research Triangle Park, NC, 1989. 

EPA. 1988d. Reference dose (RfD) Description and use in health risk assessment. Vol. I, Appendix A Integrated risk information system supportive documentation. U.S. Environmental Protection Agency, Office of Health and Environmental Assessment. EPA 600/8-86-032a. 

Source U.S. EPA, Treatability Manual, Volume II Industrial Descriptions, Report EPA-600/ 2-82-001b, U.S. Environmental Protection Agency, Washington, DC, September 1981. 

EPA. 1987b. Bulk organic chemicals. Applicability description of the bulk organic chemicals subcategory. U. S. Environmental Protection Agency. Code of Federal Regulations. 40 CFR 414.70. 

Cover photos (Left) Deployment of SPMDs under Antarctica ice, courtesy of Carl Orazio, USGS. (Right) Exposure chambers with passive samplers deployed in Australian grasslands, courtesy of Don Butler, Australian Environmental Protection Agency. The photo above the title is a standard lipid-containing SPMD, courtesy of Randal Clark, USGS (see Figure 1-1, p. 18, for a complete description). 

Membership organization sponsored by the Office of Pesticide Programs of the U.S. Environmental Protection Agency that maintains the National Pesticide Information Retrieval Service (NPIRS), which provides current information on products registered with the EPA and tolerance data for pesticides and hazardous chemicals. It also provides state registration information, registration guideline information, and descriptions of studies on pesticides and hazardous chemicals. 

In a description of environmental problems, the coherence between processes in all compartments and organisms belonging to the compartments should be considered. Environmental policy in the past was often focused on a single compartment there was no international agreement on the selection of criteria for priority pollutants (I). This situation is illustrated by the number of priority pollutants selected by authorities in the European community and the U.S. Environmental Protection Agency (USEPA). The European community lists 126 priority pollutants, and the USEPA lists 114 59 pollutants are common to both lists (I). 

Neptune D. 1980. Descriptive statistic for detected priority pollutants and tabulation listings. Washington, DC U.S. Environmental Protection Agency, Office of Water Regulations and Standards. TRDB-0280-001. 

US Environmental Protection Agency, Development of Data Quality Objectives, Description of Stages I and II, July, [US Environmental Protection Agency, 1986]. 

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