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J Environ Manage

Title:		Allocating anthropogenic pollutant emissions over space: application to ozone pollution management
Author(s):		Diem JE; Comrie AC;
Address:		"Department of Geography and Regional Development, University of Arizona, Harvill Building, Box #2, Tucson, Arizona 85721, USA. diem@climate.geog.arizona.edu"
Journal Title:		J Environ Manage
Year:		2001
Volume:		63
Issue:		4
Page Number:		425 - 447
DOI:		10.1006/jema.2001.0492
ISSN/ISBN:		0301-4797 (Print) 0301-4797 (Linking)
Abstract:		"An inventory of volatile organic compound (VOC) and nitrogen oxides (NOx) emissions is an important tool for the management of ground-level ozone pollution. This paper has two broad aims: it illustrates the potential of a geographic information system (GIS) for enhancing an existing spatially-aggregated, anthropogenic emissions inventory (EI) for Tucson, AZ, and it discusses the ozone-specific management implications of the resulting spatially-disaggregated EI. The main GIS-related methods include calculating emissions for specific features, spatially disaggregating region-wide emissions totals for area sources, and adding emissions from various point sources. In addition, temporal allocation factors enable the addition of a multi-temporal component to the inventory. The resulting inventory reveals that on-road motor vehicles account for approximately 50% of VOC and NOx emissions annually. On-road motor vehicles and residential wood combustion are the largest VOC sources in the summer and winter months, respectively. On-road motor vehicles are always the largest NOx sources. The most noticeable weekday vs. weekend VOC emissions differences are triggered by increased residential wood combustion and increased lawn and garden equipment use on weekends. Concerning the EI's uncertainties and errors, on-road mobile, construction equipment, and lawn and garden equipment are identified as sources in the most need of further investigation. Overall, the EIs spatial component increases its utility as a management tool, which might involve visualization-driven analyses and air quality modeling"
Keywords:		"Air Pollution/*prevention & control Data Collection Environmental Monitoring Geography Information Systems Nitrogen Oxides/analysis Organic Chemicals/analysis Oxidants, Photochemical/*analysis Ozone/*analysis Reference Values Volatilization;"
Notes:		"MedlineDiem, J E Comrie, A C eng Research Support, Non-U.S. Gov't England 2002/02/06 J Environ Manage. 2001 Dec; 63(4):425-47. doi: 10.1006/jema.2001.0492"