Environmental Protection Agency maximum contaminant levels

The Occupational Safety and Health Administration permissible exposure limit time-weighted averages (TWAs) for chromium compounds are for, chromi-um(0) and salts - 1.0 mg m for chromium(II) and chromium(III) - 0.5mgm . The American Conference of Governmental Industrial Hygienists threshold limit value - TWA for chromium(VI) is 0.01 mgm. The US Environmental Protection Agency maximum contaminant level in drinking water is 0.1 mgH. ... 

Short-term exposure to toxaphene above the levels established by the Environmental Protection Agency (maximum contaminant level (MCE)) has been shown to cause effects in the central nervous system (CNS), which include restlessness, hyperexcitability, tremors, spasms, or convulsions. 

Drinking water suppHed to carbonated soft drink manufacturing faciUties from private or municipal sources must comply with all regulatory requirements. Treated water must meet all U.S. Environmental Protection Agency primary maximum contaminant levels and may also be subject to additional state requirements. Treated water is routinely analyzed for taste, odor, appearance, chlorine, alkalinity, iron, pH, total dissolved soHds, hardness, and microbiological contamination. 

We take as an example the fate of benzene ((/Ur,) as it migrates with groundwater flowing through an aquifer. Benzene is a common contaminant because it makes up much of the volatile fraction of gasoline and other petroleum products. It is a suspected carcinogen with an MCL (maximum contamination level) set by the US Environmental Protection Agency of 5 qg kg-1. 

EPA. 1991a. National primary drinking water regulations Maximum contaminant levels and goals. U.S. Environmental Protection Agency. Code of Federal Regulations. 40 CFR 141.50 and 141.61. 

The World Health Organization has established an international drinking-water guideline for di(2-ethylhexyl) phthalate of 8 tg/L (WHO, 1993). The Environmental Protection Agency (1998) has set the maximum contaminant level (MCL) for di(2-ethylhexyl) phthalate in drinking-water at 6 tg/L in the United States. 

Maximum contaminant levels (MCLs) Drinking water standards for various contaminants that are enforced by the United States Environmental Protection Agency (US EPA) that take into account the risks of human health effects and the costs of cleaning the water (Appendix E). The current MCL for arsenic is 10 pg E 1 (40 Code of Federal Regulations 141.62). 

The 1993 Environmental Protection Agency (EPA) regulation contains standards for 84 chemicals and minerals in drinking water. According to the EPA one of the most prevalent of the listed contaminants is naturally occuring antimony. The maximum contaminant level for antimony and nickel has been set at 0.006 mg/L and 0.1 mg/L respectively. 

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