Document Detail

Mobile source emission inventories--monthly or annual average inputs to MOBILE6?
MedLine Citation:
PMID:  15373368     Owner:  NLM     Status:  MEDLINE    
In many urban areas, on-road vehicles are the biggest contributing source category of volatile organic compounds (VOCs) and nitrogen oxides (NOx). Based on a recently completed emission inventory study for three counties in central Florida, the major source by far of anthropogenic VOCs and NOx was on-road mobile sources, even though other sources (such as construction equipment, lawn and garden equipment, and various point sources) were also significant. Although there is specific guidance for conducting an ozone-season inventory for mobile sources, there is a lack of detailed guidance as to how to employ the U.S. Environmental Protection Agency's (EPA) latest mobile source emission factor program, MOBILE6, for an annual inventory. Several of the MOBILE6 inputs that significantly influence emission factors (e.g., temperature) can vary widely throughout the year, and the annual average value may not be appropriate. Rather, it may be better to utilize monthly values of these parameters. This paper investigated the sensitivity of the annual emission inventory results to using annual or monthly values of temperature, Reid Vapor Pressure of gasoline, and humidity. The results show that, for a three-county area in central Florida representing metropolitan Orlando, the annual emission inventory based on the sum of individual monthly averages is not significantly different from that calculated using one set of annual average inputs to MOBILE6.
C David Cooper; Marten Arbrandt
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the Air & Waste Management Association (1995)     Volume:  54     ISSN:  1096-2247     ISO Abbreviation:  J Air Waste Manag Assoc     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-09-17     Completed Date:  2004-10-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9503111     Medline TA:  J Air Waste Manag Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1006-10     Citation Subset:  IM    
Civil and Environmental Engineering Department, University of Central Florida, Orlando, Florida 32816-2450, USA.
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MeSH Terms
Air Pollutants / analysis*
Automobile Driving
Data Collection
Models, Theoretical*
Reproducibility of Results
Vehicle Emissions / analysis*
Reg. No./Substance:
0/Air Pollutants; 0/Vehicle Emissions

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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