Document Detail

Primary particulate matter from ocean-going engines in the Southern California Air Basin.
MedLine Citation:
PMID:  19708372     Owner:  NLM     Status:  MEDLINE    
The impact of primary fine particulate matter (PM2.5) from ship emissions within the Southern California Air Basin is quantified by comparing in-stack vanadium (V) and nickel (Ni) measurements from in-use ocean-going vessels (OGVs) with ambient measurements made at 10 monitoring stations throughout Southern California. V and Ni are demonstrated as robust markers for the combustion of heavy fuel oil in OGVs, and ambient measurements of fine particulate V and Ni within Southern California are shown to decrease inversely with increased distance from the ports of Los Angeles and Long Beach (ports). High levels of V and Ni were observed from in-stack emission measurements conducted on the propulsion engines of two different in-use OGVs. The in-stack V and Ni emission rates (g/h) normalized by the V and Ni contents in the fuel tested correlates with the stack total PM emission rates (g/h). The normalized emission rates are used to estimate the primary PM2.5 contributions from OGVs at 10 monitoring locations within Southern California. Primary PM2.5 contributions from OGVs were found to range from 8.8% of the total PM2.5 at the monitoring location closest to the port (West Long Beach) to 1.4% of the total PM2.5 at the monitoring location 80 km inland (Rubidoux). The calculated OGV contributions to ambient PM2.5 measurements at the 10 monitoring sites agree well with estimates developed using an emission inventory based regional model. Results of this analysis will be useful in determining the impacts of primary particulate emissions from OGVs upon worldwide communities downwind of port operations.
Harshit Agrawal; Rudy Eden; Xinqiu Zhang; Philip M Fine; Aaron Katzenstein; J Wayne Miller; Jean Ospital; Solomon Teffera; David R Cocker
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  43     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-08-27     Completed Date:  2009-09-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5398-402     Citation Subset:  IM    
Department of Chemical and Environmental Engineering, University of California, Bourns Hall A321, Riverside, California 92521, USA.
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MeSH Terms
Air Pollutants / analysis*
Air Pollution
Environmental Monitoring / methods
Fuel Oils
Los Angeles
Nickel / analysis
Pacific Ocean
Particulate Matter / analysis*
Vanadium / analysis
Vehicle Emissions / analysis*
Reg. No./Substance:
0/Air Pollutants; 0/Fuel Oils; 0/Particulate Matter; 0/Vehicle Emissions; 7440-02-0/Nickel; 7440-62-2/Vanadium

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

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