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Isoprene from expired air inside a private car

Isopren från utandningsluft inuti en bil

Susan Björkqvist (Institutionen för kemisk miljövetenskap) ; Anders Spetz (Institutionen för kemisk miljövetenskap) ; Olle Ramnäs (Institutionen för kemisk miljövetenskap) ; Göran Petersson (Institutionen för kemisk miljövetenskap)
The science of the total environment Vol. 207 (1997), p. 63-67.
[Artikel, refereegranskad vetenskaplig]

The concentration of isoprene inside a small-sized parked private car with one person was found to be of the order of 20 g/m3. Isoprene was then the major non-methane volatile hydrocarbon except in strongly traffic-polluted parking places. On driving, with intermediate fan ventilation, the isoprene levels were one order of magnitude lower. In the empty car, the concentrations were still much lower, proving that isoprene originates predominantly from expired air. Air samples were taken on triple-layer adsorbent cartridges and were analysed for volatile hydrocarbons by gas chromatography after thermal desorption. The analytical aluminium oxide column permitted simultaneous determination of a range of reported traffic-emitted hydrocarbons including the carcinogenic 1,3-butadiene and benzene.

Nyckelord: isopene, human breath, automobiles, adsorbent sampling, gas chromatography



Denna post skapades 2008-07-25. Senast ändrad 2010-09-23.
CPL Pubid: 72551

 

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Institutioner (Chalmers)

Institutionen för kemisk miljövetenskap (1900-2003)

Ämnesområden

Analytisk kemi
Miljökemi
Medicinsk bioteknologi (med inriktning mot cellbiologi)

Chalmers infrastruktur

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