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Issue 5, 2000
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BTX measurements with diffusive samplers inthe vicinity of a cokery: Comparison between ORSA-type samplers and pumpedsampling

Hans-Ulrich Pfeffer*a  and  Ludger Breuera 
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* Corresponding authors

a Landesumweltamt Nordrhein-Westfalen, Wallneyer Str. 6, Essen, Germany
E-mail: ulrich.pfeffer@lua.nrw.de
Fax: +49 201 7995 1575
Tel: +49 201 7995 1264

Abstract

In the framework of new European directives in the field of ambient air quality assessment specific requirements for measurement methods for benzene will be defined and have to be met in the future. In a residential area in the vicinity of a cokery a comprehensive monitoring programme for BTX compounds (benzene, toluene, xylenes) was carried out with diffusive samplers. Measurement results from 20 sites show a distinct spatial distribution of benzene concentrations which is caused by the emissions of the plant. Comparisons with two pumped measurement methods reveal excellent agreement in the case of benzene. An assessment of measurement uncertainty for the diffusive method is presented in terms of standard deviations from parallel measurements (precision) and by comparison with a reference method according to national and international standards. Data quality objectives required by an upcoming European directive for benzene can be met by diffusive sampling.

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Publication details

The article was received on 29 Mar 2000, accepted on 17 Jul 2000 and first published on 17 Aug 2000


Article type: Paper
DOI: 10.1039/B002514N
Citation: J. Environ. Monit., 2000,2, 483-486
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    BTX measurements with diffusive samplers in the vicinity of a cokery: Comparison between ORSA-type samplers and pumped sampling

    H. Pfeffer and L. Breuer, J. Environ. Monit., 2000, 2, 483
    DOI: 10.1039/B002514N

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