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标题：BTX and carbonyl compounds in the roadside environment of Inezgane-Ait Melloul (southwestern Morocco),
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作者：Ouabourrane Z. ; El Abassi M. ; El Haddaj H. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：2
页码：611-621
出版社：University of Mohammed Premier Oujda
摘要：The concentrations of carbonyl compounds (formaldehyde, acetaldehyde, benzaldehydeand acetone) and BTX compounds (benzene, toluene and o-m-p-xylenes) were measured in2012-2014 at eight roadside locations of the Inezgane-Ait Melloul urban community, insouthwestern Morocco. We used active sampling onto SKC activated charcoal tubes forBTX, followed by GC-FID detection, and onto DNPH cartridges for carbonyls, followedby HPLC/UV analysis. The most abundant carbonyl compound is acetone (20.0 ± 4.7µg.m-3), then formaldehyde (18.9 ± 5 µg.m-3), acetaldehyde (17.8 ± 4.3 µg.m-3) andbenzaldehyde (4.3 ± 1.3 µg.m-3). Toluene was the most abundant aromatic compound (10.8± 1.6 µg.m-3 ), followed by xylenes (10.1 ± 2.9 µg.m-3) and benzene (4.8 ± 1.2 µg.m-3).These values, in the range of previous studies of the ambiant air in cities over the world,confirm that the pollution pattern in the Inezgane Ait Melloul area is mainly influenced bythe local traffic, and not by remote background sources. Based on the concentration ratio offormaldehyde and toluene, the relative proportion of formaldehyde produced byphotochemical reactions has been evaluated to 20% in winter, and 40% in summer.
关键词：Carbonyls; BTX; Roadside;environments; Morocco.