Environmental Protection Agency Assessment

U.S. Environmental Protection Agency. Assessment of Health Effects of Benzene Germane to Low-level Exposure. Washington, D.C. Office of Research and Development, 1978, EPA-600/1-78-061. 

Concentrations near lOOmgl (96h static) of both isobutyronitrile and n-butyronitrile were without effect on fathead minnows. Daphnia treated with 94.3 mg isobutyronitrile showed no abnormal behavior or movement changes. The same concentration of n-butyronitrile resulted in 1/20 daphnids becoming immobile at 48 h, but this was not considered treatment related. According to the Environmental Protection Agency assessment criteria, these values correspond to a low concern level . 

A good example of a prescriptive approach to quality assessment is the protocol outlined in Figure 15.2, published by the Environmental Protection Agency (EPA) for laboratories involved in monitoring studies of water and wastewater. Independent samples A and B are collected simultaneously at the sample site. Sample A is split into two equal-volume samples, and labeled Ai and A2. Sample B is also split into two equal-volume samples, one of which, Bsf, is spiked with a known amount of analyte. A field blank. Dp, also is spiked with the same amount of analyte. All five samples (Ai, A2, B, Bsf, and Dp) are preserved if necessary and transported to the laboratory for analysis. 

Scientific and Technical Assessment Report on Manganese, PB-242-291, Environmental Protection Agency, Washington, D.C., 1975, pp. 6—7. 

P. A. Fenner-Crisp, "Risk Assessment Methods for Pesticides in Food and Drinking Water," Office of Pesticide Programs, U.S. Environmental Protection Agency, presented at the Florida Pesticide Review Council Meeting, July 7, 1989. 

Health Effects AssessmentforEthyl Chloride Report EPA/600/8-88/036, United States Environmental Protection Agency, Environmental Criteria Assessment Office, Cincinnati, Ohio, 1987. 

Health Effects Assessment for Hexavalent Chromium, EPA/540/1-86-019, United States Environmental Protection Agency (EPA), Sept. 1984 Toxicological Profile for Chromium, Agency for Toxic Substances and Disease Registry (ASTDR), ASTDR/TP-88/10,1989. 

Health Assessment Document for Chromium, EPA-600/8-83-014F, United States Environmental Protection Agency (EPA), 1984. 

US Environmental Protection Agency, Special Report on Environmental Endocrine Disruption An Effects Assessment and Analysis, EPA, Washington, 1997, EPA Report No. EPA/630/R-96/012. 

The US Environmental Protection Agency (EPA) Risk Assessment Foriim An endocrine disrupter is an exogenous agent that interferes with the synthesis, secretion, transport, binding, action, or elimination of natural... 

Superfund Exposure Assessment Manual," U.S. Environmental Protection Agency, EPA/ 540/1-88/001, OSWER Directive 9285.5-1, April 1988. 

Sources Air Quality Criteria for Particulate Matter and Sulfur Oxides, final draft, U.S. Environmental Protection Agency, Research Triangle Park, NC, December 1981 Review of the National Ambient Air Quality Standards for Sulfur Oxides Assessment of Scientific and Technical Information, Draft OAQPS Staff Paper, U.S. Environmental Protection Agency, Research Triangle Park, NC, April 1982. 

U.S. Environmental Protection Agency. (1998). Assessing the Emissions and Fuel Consumption Impacts of Intelligent Transportation Systems (ITS). Report Number 231-R-98-007. Washington DC Author. 

C. -H. Hsu, National Center for Environmental Assessment, United States Environmental Protection Agency, Washington, DC, USA... 

EPA. 1978d. Source assessment Pesticide manufacturing air emissions—overview and prioritization. Washington, DC U.S. Environmental Protection Agency. EPA-600/2-78-004d, 135. 

EPA. 1984a. Health and environmental effects profile for methyl parathion. Cincitmati, OH U.S. Environmental Protection Agency, Environmental Criteria and Assessment Office. NTIS PB88-180534. 

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. 

MRL users should also understand the MRL derivation methodology. MRLs are derived using a modified version of the risk assessment methodology the Environmental Protection Agency (EPA) provides (Barnes and Dourson 1988) to determine reference doses for lifetime exposure (RfDs). 

CAG Cancer Assessment Group of the U.S. Environmental Protection Agency... 

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