کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9465838 | 1622778 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Organochlorine micropollutants in the Jiulong River Estuary and Western Xiamen Sea, 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: Organochlorine micropollutants in the Jiulong River Estuary and Western Xiamen Sea, China Organochlorine micropollutants in the Jiulong River Estuary and Western Xiamen Sea, China](/preview/png/9465838.png)
چکیده انگلیسی
Organochlorine contaminants including 12 polychlorinated biphenyl (PCB) congeners and 18 insecticides were determined in water, pore water and sediments of the Jiulong River Estuary and Western Xiamen Sea, China. The results showed that the levels of the total PCBs ranged from non-detectable to 1500 ng lâ1 in water, from 209 to 3870 ng lâ1 in pore water, and from 2.78 to 14.8 ng gâ1 dry weight in sediments. Total organochlorine insecticide concentrations were from below the limit of detection to 2480 ng lâ1 in water, from 267 to 33400 ng lâ1 in pore water, and from 4.22 to 46.3 ng gâ1 dry weight in sediments. Concentrations of PCBs and insecticides in pore water were significantly higher than those in surface water, due to the high affinity of these hydrophobic compounds for sediment phase. The PCB congeners with the highest concentrations were CB153, CB180 and CB194, which together accounted for 68-87% of total PCBs in water, pore water and sediment. Among the hexachlorocyclohexane (HCH) compounds, beta-HCH was found to be a major isomer. Analysis of 1,1,1-trichloro-2,2-bis-chlorophenyl-ethane (DDT) and its metabolites showed that 1,1-dichloro-2[o-chlorophenyl]-2[p-chlorophenyl]-ethylene (DDE) was dominant in the group. In comparison to a 1998 study in the Western Xiamen Sea, levels of organochlorines were enhanced due probably to recent inputs and changes in sediments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 51, Issues 8â12, 2005, Pages 950-959
Journal: Marine Pollution Bulletin - Volume 51, Issues 8â12, 2005, Pages 950-959
نویسندگان
K. Maskaoui, J.L. Zhou, T.L. Zheng, H. Hong, Z. Yu,