Environmental Protection Agency. See U.S. EPA

EPA. See U.S. Environmental Protection Agency EPACT, alternative fuels and 3... 

Environmental Protection Agency (EPA), 70 109 27 568. See also EPA entries U.S. Environmental Protection Agency (USEPA) U.S. EPA Tier 2 specification air quality standards, 27 583-586 aquaculture chemical regulations, 3 209 Chemical Substances in Commerce list, 72 832... 

U.S. Environmental Protection Agency, Indoor Air Facts. Much of the credit for the successful publication of this pamphlet is due to James Repace, a senior epa scientist, whistle-blower, and active nffe union member, who widely pubhshed his rebuttals to the tobacco industry. On the e pa s building assessment approach, see U.S. Environmental Protection Agency and National Institute of Occupational Safety and Health, Building Air Quahty. ... 

For an excellent, comprehensive review of the chemistry, environmental, and anthropogenic release, environmental fate, and environmental and human health effects of lead, see Air Quality Criteria for Eead, Vol. I—IV, EPA-600/8-83/028a-dF, U.S. Environmental Protection Agency, Washington, D.C., June 1986, -Msd Air Quality Criteria for Eead Supplement to the 1986 Addendum, EPA-600/8-89/049F, U.S. Environmental Protection Agency, Washington, D.C., Aug. 1990. 

Chlor—alkah production is the largest iadustrial source of mercury release ia the United States (see Alkali and chlorine products). For the 1991 reporting year, chlor—alkah faciUties accounted for almost 20% of the faciUties that reported releases of mercury to the U.S. Environmental Protection Agency (EPA) for inclusion onto the Toxics Release Inventory (TRI) (25). 

Prior to the 1990s phenyhnercuric acetate was the primary bactericide and fungicide in latex and waterborne paints. Because of the increasing concerns of mercury toxicity and the potential for high consumer and occupational exposures to mercury when present in paints, the U.S. Environmental Protection Agency (EPA) induced U.S. manufacturers of PMA and other mercury compounds to withdraw their registrations for use of these substances as biocides in paints (see AIercury). Mercury compounds are used only for very limited, specific purposes, such as the use of phenyhnercuric mXx.2LX.e[55-68-5] as a bactericide in cosmetic eye preparations (see Cosmetics). 

U.S. Environmental Protection Agency. (1997). EPA s Revised Particulate Matter Standards. Pact Sheet (July). Washington, DC U.S. Government Printing Office. Utility Data Institute. (1995). UDI Sees Electricity Demand Surging with Global Economy. Wind Energy Weekly o. 648 (May 29). 

There are many commercially available air stripper technologies. There are several different types of air strippers, including packed towers, tray-type, spray aerators, mist aerators, diffused aerators, low-profile packed towers, and centrifugal air strippers. According to the U.S. Environmental Protection Agency (EPA), an estimated 1000 air stripping units were operational at sites throughout the United States in 1991 (see Table 1). 

The ubiquitous nature of these airborne PAHs is evident from the fact that the 16 U.S. Environmental Protection Agency Priority Polycyclic Aromatic Hydrocarbon Pollutants shown in Table 10.1 (U.S. EPA, 1988) are found, as we shall see in this chapter, in urban airsheds throughout the world. Their widespread... 

When the effect of exposure to a chemical is the production of a cancer, it is sometimes assumed, for instance, by regulatory agencies such as the U.S. Environmental Protection Agency (EPA) that the dose-response curve passes through zero. Thus, it is not like the dose-response curve we have been discussing above where there is a threshold. The zero threshold dose response is predicated on the belief that the causation of cancer by a genotoxic mechanism is a stochastic (chance) event, in which a reactive chemical binds to and damages or alters DNA (see chap. 6). 

Data from the U.S. Environmental Protection Agency and the National Council for Radiation Protection. See the web page www.epa.gov/rpdweboo/students/calculate.html for a more detailed calculation. 

This chapter first outlines some general principles of good practice, and then summarizes methods. The Syracuse Research Corporation (SRC) package of programs is in such wide use that some information about them is included as an appendix (see Appendix 1, Section 4.VII). They are freely downloadable from the U.S. Environmental Protection Agency (EPA). 

Anderson et al. (1983) published the methods used by the U.S. Environmental Protection Agency (EPA) for quantitative extrapolations from animals to humans. They based the extrapolations on the hnear term of a multistage model (see Section... 

In terms of the descriptors used in the prediction of skin permeability coefficients, the octanol-water partition coefficient F is a well-established measure of hydro-phobicity (Dearden, 1990). There is a variety of algorithms to calculate log P, including Web-based programs and the KOWWIN software, which is part of the EPISuite utility. EPISuite is available free from the U.S. Environmental Protection Agency (see Cronin and Livingstone, 2004b, for more details EPISuite can be downloaded from http //www.epa.gov/oppt/exposure/docs/episuite.htm). Molecular size is well modeled by molecular weight, which of course is fimdamental and trivial to calculate. 

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