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نوع الوثيقة |
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مقال في مجلة دورية |
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عنوان الوثيقة |
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تحليل التركيزات الجوية من الكوينون والمواد العضوية متعددة الحلقات فى الحالة الغازية والغبار Analysis of atmospheric concentrations of quinones and polycyclic aromatic hydrocarbons in vapour and particulate phases |
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الموضوع |
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علوم البيئة |
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لغة الوثيقة |
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الانجليزية |
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المستخلص |
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Polycyclic aromatic hydrocarbons (PAH) are often measured in studies of atmospheric chemistry or
health effects of air pollution, due to their known human carcinogenicity. In recent years, PAH quinone
derivatives have also become a focus of interest, primarily because they can contribute to oxidative
stress. This work reports concentrations of 17 PAH and 15 quinones measured in air samples collected at
a trafficked roadside. Data are presented for four compounds not previously reported in ambient air:
2-methyl-1,4-naphthoquinone, 2,6-di-tert-butyl-1,4-benzoquinone, methyl-1,4-benzoquinone and 2,3-
dimethylanthraquinone, and a large vapour phase component is measured, not analysed in most
earlier studies. Analyses are reported also for SRM 1649a and 1649b, including many compounds (8 for
SRM 1649a and 12 for SRM 1649b) for which concentrations have not previously been reported. This
work assesses the vapour/particle phase distribution of PAHs and quinones in relation to their molecular
weight, vapour pressure, polarity and Henry’s Law constant, finding that both molecular weight and
vapour pressure (which are correlated) are good predictors of the partitioning. |
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ردمد |
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1352-2310 |
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اسم الدورية |
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ATMOSPHERIC ENVIRONMENT |
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المجلد |
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77 |
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العدد |
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7 |
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سنة النشر |
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1434 هـ
2013 م |
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نوع المقالة |
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مقالة علمية |
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تاريخ الاضافة على الموقع |
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Monday, October 21, 2013 |
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الباحثون
| Juana Delgado-Saborit | Delgado-Saborit, Juana | باحث | | |
| Mohammed ALAM | Alam, Mohammed | باحث | | |
| Krystal Godri Pollitt | Godri Pollitt, Krystal | باحث | | |
| Christopher Stark | Stark, Christopher | باحث | | |
| Roy Harrison | Harrison, Roy | باحث | | r.m.harrison@bham.ac.uk |
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الملفات
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36168.pdf
| pdf | Analysis of atmospheric concentrations of quinones and polycyclic
aromatic hydrocarbons in vapour and particulate phases |
|