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J Air Waste Manag Assoc

Title:		An environmental decision-making tool for evaluating ground-level ozone-related health effects
Author(s):		Sanhueza PA; Reed GD; Davis WT; Miller TL;
Address:		"Department of Geographical Engineering, University of Santiago, Santiago, Chile. psanhuez@lauca.usach.cl"
Journal Title:		J Air Waste Manag Assoc
Year:		2003
Volume:		53
Issue:		12
Page Number:		1448 - 1459
DOI:		10.1080/10473289.2003.10466324
ISSN/ISBN:		1096-2247 (Print) 1096-2247 (Linking)
Abstract:		"A computer model called the Ozone Risk Assessment Model (ORAM) was developed to evaluate the health effects caused by ground-level ozone (O3) exposure. ORAM was coupled with the U.S. Environmental Protection Agency's (EPA) Third-Generation Community Multiscale Air Quality model (Models-3/CMAQ), the state-of-the-art air quality model that predicts O3 concentration and allows the examination of various scenarios in which emission rates of O3 precursors (basically, oxides of nitrogen [NOx] and volatile organic compounds) are varied. The principal analyses in ORAM are exposure model performance evaluation, health-effects calculations (expected number of respiratory hospital admissions), economic valuation, and sensitivity and uncertainty analysis through a Monte Carlo simulation. As a demonstration of the system, ORAM was applied to the eastern Tennessee region, and the entire O3 season was simulated for a base case (typical emissions) and three different emission scenarios. The results indicated that a synergism occurs when reductions in NOx emissions from mobile and point sources were applied simultaneously. A 12.9% reduction in asthma hospital admissions is expected when both mobile and point source NOx emissions are reduced (50 and 70%, respectively) versus a 5.8% reduction caused by mobile source and a 3.5% reduction caused by point sources when these emission sources are reduced individually"
Keywords:		"Air Pollution/prevention & control *Decision Making *Environment Humans Oxidants, Photochemical/*toxicity Ozone/*toxicity *Public Health Risk Assessment United States United States Environmental Protection Agency;"
Notes:		"MedlineSanhueza, Pedro A Reed, Gregory D Davis, Wayne T Miller, Terry L eng 2004/01/01 J Air Waste Manag Assoc. 2003 Dec; 53(12):1448-59. doi: 10.1080/10473289.2003.10466324"