کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4414816 1307727 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distribution of polycyclic aromatic hydrocarbons in water, suspended particulate matter and sediment from Daliao River watershed, China
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Distribution of polycyclic aromatic hydrocarbons in water, suspended particulate matter and sediment from Daliao River watershed, China
چکیده انگلیسی

This study investigated the spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in surface water, suspended particulate matter (SPM) and sediment of Daliao River watershed composed of the Hun River, Taizi River, and Daliao River. The sources of PAHs were evaluated employing ratios of specific PAHs compounds and principal component analysis (PCA). The total concentrations of PAHs ranged from 946.1 to 13448.5 ng l−1 in surface water, from 317.5 to 238518.7 ng g−1 dry weight in SPM, and from 61.9 to 840.5 ng g−1 dry weight in sediments. The levels of PAHs are relatively higher in water and SPM, and lower in sediments, in comparison with those reported for other rivers and marine systems around the world. The composition of PAHs in these mediums was mainly 4–6 rings PAHs. The higher contents of low molecular weight PAHs in the water and SPM suggest a relatively recent local source of PAHs, entered into the river via wastewater discharge and atmospheric way. On the other hand, the heavy pollution of PAHs in sediment and water near heavy industrial area suggests that PAHs have been released from industrial wastewater.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 68, Issue 1, May 2007, Pages 93–104
نویسندگان
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