Document Detail


PCDD/F emissions from heavy duty vehicle diesel engines.
MedLine Citation:
PMID:  10214716     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The currently available information on PCDD/F emissions from diesel vehicles is briefly surveyed. Considerable uncertainty is identified concerning the emissions from heavy duty diesel trucks which have been measured only twice so far. These measurements led to emission factors differing by a factor of 200; similar discrepancy was also revealed by measurements of ambient air in traffic tunnels. New PCDD/F emission measurement results are presented which have been carried out at the exhaust systems of a stationary engine and of a modern heavy duty vehicle engine at transient operation conditions simulated on a test bench. PCDD/F concentrations in the exhaust gases were found to be in the range of control blank samples. Based on the highest concentration observed in the truck engine exhaust (9.7 pg I-TEQ/dry standard m3) a worst case estimate of the annual PCDD/F emission freight from diesel fuel combustion in the European countries of about 30 g I-TEQ/year is calculated. This emission appears to be irrelevant compared to the overall emission rate of more than 6,000 g I-TEQ/year being inventoried recently. Finally the possibilities to link congener/homologue profiles of diesel emission to profiles found in food or human samples are discussed.
Authors:
K J Geueke; A Gessner; U Quass; G Bröker; E Hiester
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemosphere     Volume:  38     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-05-21     Completed Date:  1999-05-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  2791-806     Citation Subset:  IM    
Affiliation:
Landesumweltamt Nordrhein-Westfalen, Essen, Germany. Karl-Josef.Geueke@essen.lua.nrw.de
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants / analysis*
Furans / analysis*
Gas Chromatography-Mass Spectrometry
Tetrachlorodibenzodioxin / analogs & derivatives*,  analysis
Vehicle Emissions / analysis*
Chemical
Reg. No./Substance:
0/Air Pollutants; 0/Furans; 0/Vehicle Emissions; 0/polychlorodibenzo-4-dioxin; 1746-01-6/Tetrachlorodibenzodioxin

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


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