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Benzene from traffic
Colophon
Title
Benzene from traffic
Subtitle
Fuel content and ambient air concentrations
Author
Jensen, Finn Palmgren; Hansen, Asger B.; Berkowicz, Ruwim; Skov,
Henrik;
Publisher
221 Danish Environmental Protection Agency
Responsible institution
Danish Environmental Protection Agency
Copyright
Ministry of Environment and Energy. Danish Environmental Protection Agency
Series and number:
Faglig rapport fra DMU, 309
Notes and other information
dan: Trykt udgave af rapporten er udgivet af Danmarks
Miljøundersøgelser
Emneord
dan: benzen CAS 71-43-2; emissionsmængder; byer;
trafik; luftkvalitet; benzin; analysemetoder;
monitering; VOC; NO; NOX
Abstract
eng: The measurements of benzene showed very clear decreasing trends in the air
concentrations and the emissions since 1994. At the same time the measurements of CO and
NOx also showed a decreasing trend, but not so strong as for benzene. The
general decreasing trend is explained by the increasing number of petrol vehicles with
three way catalysts, 60-70% in 1999. The very steep decreasing trend for benzene at the
beginning of the period from 1994 was explained by the combination of more catalyst
vehicles and reduced benzene content in Danish petrol. The total amount of aromatics in
petrol, including toluene, increased only weakly. The analyses of air concentrations were
confirmed by analyses of petrol sold in Denmark.
The concentration of benzene at Jagtvej in Copenhagen is still in 1998
above the expected new EU limit value, 5 µg/m3 as annual average. However, the
reduced content of benzene in petrol from 1998 and the increasing number of vehicles with
catalysts will probably lead to compliance with this limit value.
Resumé
dan: Måling af benzen og andre aromater i luft er
gennemført på jagtvej i København 1994-99 og tilsvarende på Albanigade i odense
1997-99. Niveau og udvikling, samt emissionen af bl.a. benzen fra den aktuelle bilpark er
bestemt. Parallelt hermed er målt indholdet af benzen og andre aromater i dansk
benzin. undersøgelsen har vist en klar sammenhæng mellem benzen i benzin og
koncentrationen i byluft. Reduktionen af benzen indholdet fra 3,5 % i 1994 til 1 % i
slutningen af 1998 har ført til den ønskede reduktion i byluft, men endvidere har
flere biler med trevejs katalysator ført til yderligere reduktioner.
Language
eng
ISBN - electronic:
87-7909-983-1
Price - electronic
0 DDK
Version
1.0
Version date
2000.03.02
Format
htm; gif: doc.
Inventory
helepubl_eng.htm; indhold_eng.htm; kolofon_eng.htm; kap04_eng.htm; forord_eng.htm;
samfat_eng.htm; udskriv_eng.htm; vandret_eng.htm; kap01_eng.htm; samfat.htm;
default_eng.htm; kap03_eng.htm; kap02_eng.htm; kap05_eng.htm; kap06_eng.htm;
kap07_eng.htm; kap08_eng.htm; kap09_eng.htm; kap10_eng.htm; tab0301.htm; tab401.htm;
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ISBN - print
87-7772-527-1
Publication standard no.
1.0
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