کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6358009 | 1622745 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Distribution, sources and ecological risk assessment of PAHs in surface sediments from Guan River Estuary, China
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Distribution, sources and ecological risk assessment of PAHs in surface sediments from Guan River Estuary, China Distribution, sources and ecological risk assessment of PAHs in surface sediments from Guan River Estuary, China](/preview/png/6358009.png)
چکیده انگلیسی
The contamination of surface sediments in Guan River Estuary, China, by polycyclic aromatic hydrocarbons (PAHs) has been fully investigated. Total concentrations of 21 PAHs ranged from 90 to 218Â ng/g with an average of 132.7Â ng/g, which is relatively low in comparison with other estuaries around the world. PAH concentrations appeared to be positively correlated with clay content and negatively correlated with sediment grain size. Source identification implied that the PAHs originated mainly from pyrolytic sources. However, source patterns may be continuously changed to a petrogenic origin due to the heavy ship traffic and continuous discharge of oily sewage in this area. The PAH levels were also compared with international Sediments Quality Guidelines and Sediments Quality Criteria, and the results indicated low negative effects for most individual PAHs. However, toxic effects related to FLO would occur occasionally in most locations in the estuary.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 80, Issues 1â2, 15 March 2014, Pages 52-58
Journal: Marine Pollution Bulletin - Volume 80, Issues 1â2, 15 March 2014, Pages 52-58
نویسندگان
Xinran He, Yong Pang, Xiaojuan Song, Binlin Chen, Zhihua Feng, Yuqin Ma,