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RECORD NUMBER: 322 OF 393Main Title | Risk and exposure assessment for review of the secondary national ambient air quality standards for oxides of nitrogen and oxides of sulfur : second draft. | ||||||||||||||||||||||||||
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CORP Author | Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. | ||||||||||||||||||||||||||
Publisher | U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, | ||||||||||||||||||||||||||
Year Published | 2009 | ||||||||||||||||||||||||||
Report Number | PB2009-112046; PB2009-112047; EPA-452/P-09-004a; EPA-452/P-09-004b | ||||||||||||||||||||||||||
Stock Number | PB2009-112046 | ||||||||||||||||||||||||||
OCLC Number | 428808328 | ||||||||||||||||||||||||||
Subjects | Nitrogen oxides--Environmental aspects ; Sulfur oxides--Environmental aspects ; Environmental exposure--Prevention and control ; Risk assessment ; Environmental exposure--Prevention & control | ||||||||||||||||||||||||||
Additional Subjects | Sulfur oxides ; Nitrogen oxides ; Air quality ; Public health ; Exposure assessments ; Risk assessments ; Standards ; Sources ; Ambient concentrations ; Atmospheric chemistry ; Environmental effects ; Nutrient enrichment ; Deposition ; Case studies ; Acidification ; National ambient air quality standards (NAAQS) ; Environmental Protection Agency (EPA) | ||||||||||||||||||||||||||
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Collation | 2 volumes (various pagings) : maps ; 28 cm | ||||||||||||||||||||||||||
Abstract | The U.S. Environmental Protection Agency (EPA) is conducting a joint review of the existing secondary (welfare-based) National Ambient Air Quality Standards (NAAQS) for nitrogen oxides (NOx) and sulfur oxides (SOx). EPA has decided to jointly assess the scientific information, associated risks, and standards relevant to protecting the public welfare from adverse effects associated with NOx and SOx because NOx, SOx, and their associated transformation products are linked from an atmospheric chemistry perspective, as well as an environmental effects perspective, and because the National Research Council (NRC) has recommended that EPA consider multiple pollutants, as appropriate. This is the first time since the NAAQS were established in 1971 that a joint review of these two pollutants has been conducted. |
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Notes | EPA project officer: Anne Rea. Updating EPA-452/P-08-005a and EPA-452/P-08-005b "Risk and exposure assessment for review of the secondary national ambient air quality standards for oxides of nitrogen and oxides of sulfur." "June 5, 2009." Second draft. Includes bibliographical references. "EPA-452/P-09-004a." "EPA-452/P-09-004b." PB2009-112046. PB2009-112047. |
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Contents Notes | v. 1. Main content. -- v. 2. Appendices. |