کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5751528 1619705 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Occurrence and ecological risk assessment of emerging organic chemicals in urban rivers: Guangzhou as a case study in China
ترجمه فارسی عنوان
پیدایش و ارزیابی ریسک زیست محیطی مواد شیمیایی ارگانیک در جوامع شهری: گوانگژو به عنوان نمونه موردی در چین
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


- Investigation of EDCs and PPCPs in urban rivers in megacity Guangzhou;
- Higher contamination of EDCs and PPCPs was observed in rivers in urban area;
- Concentration levels of EDCs and PPCPs were consistent with physicochemical parameters;
- 4-nonylphenol and triclosan showed RQs > 1 in more than 70% of the reported area;

Urban rivers may receive contamination from various sources including point sources like domestic sewage and nonpoint sources (e.g., runoff), resulting in contamination with various chemicals. This study investigated the occurrence of emerging organic contaminants (3 endocrine disrupting compounds (EDCs), and 17 pharmaceuticals and personal care products (PPCPs)) in six urban rivers of a representative subtropical city, Guangzhou (southern China). Our results showed that EDCs and personal care products were frequently detected in the water phase and sediment phase. 4-nonylphenol (4-NP) was the most predominant compound with the highest concentration of 5050 ng/L in the water phase and 14,400 ng/g dry weight (dw) in the sediment. Generally, higher total concentrations of EDCs and PPCPs were detected in the four urban streams compared to the main stream Zhujiang River and the Liuxi River at the suburb area. A screening-level risk assessment showed that 4-nonylphenol and triclosan (TCS) pose potential risks to aquatic organisms in most sampling sites. For individual taxa, 4-NP may pose risks to various groups of aquatic organisms, while TCS only might pose high risks to algae.CapsuleHigher contamination of EDCs and PPCPs was observed in rivers in urban area; 4-nonylphenol and triclosan showed RQs > 1 in > 70% of the reported area.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 589, 1 July 2017, Pages 46-55
نویسندگان
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