[Pollution Characteristics and Ecological Risk Assessment of Organochlorine Pesticides in Water Source Areas of Guangdong and Guangxi].

التفاصيل البيبلوغرافية
العنوان:	[Pollution Characteristics and Ecological Risk Assessment of Organochlorine Pesticides in Water Source Areas of Guangdong and Guangxi].
المؤلفون:	Yang YX; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China., Liu XY; Monitoring Centre of Pearl River Valley Aquatic Environment, Guangzhou 510611, China., Zhan ZW; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.; Environmental Protection of Dongguan, Dongguan 523009, China., Xie QL; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China., Tang JJ; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China., Ouyang PY; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China., Chen ZX; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China., Xu C; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
المصدر:	Huan jing ke xue= Huanjing kexue [Huan Jing Ke Xue] 2016 Jun 08; Vol. 37 (6), pp. 2131-2140.
نوع المنشور:	Journal Article
اللغة:	Chinese
بيانات الدورية:	Publisher: Ke xue zhu ban she Country of Publication: China NLM ID: 8405344 Publication Model: Print Cited Medium: Print ISSN: 0250-3301 (Print) Linking ISSN: 02503301 NLM ISO Abbreviation: Huan Jing Ke Xue Subsets: MEDLINE
أسماء مطبوعة:	Original Publication: Beijing : Ke xue zhu ban she,
مواضيع طبية MeSH:	Environmental Monitoring, Hydrocarbons, Chlorinated/toxicity , Pesticides/toxicity , Water Pollutants, Chemical/toxicity, Animals ; China ; DDT ; Ecotoxicology ; Hexachlorocyclohexane ; Risk Assessment ; Toxicity Tests ; Water
مستخلص:	The concentrations of 16 organochlorine pesticides (OCPs) in 7 water samples collected from different sites of water source areas of Guangdong and Guangxi were detected by SPE-GC-MS, and then the pollution characteristics were analyzed. This study established species sensitivity distribution(SSD) curves with BurrⅢ distribution model. In the meantime, HC 5 values were calculated by BurrliOZ software, which were used to evaluate the toxicity effects of OCPs towards aquatic organisms. Finally, margin of safety concentration values were calculated to assess the ecological risk. The results showed that the concentration of OCPs varied from 6.64 to 34.19 ng·L ^-1 , with a mean value of 16.76 ng·L ^-1 , while HCHs and DDTs contributed a lot. HCHs were predominately originated from lindane, which is a component in household insecticide, while DDTs were from dicofol contamination or historical residues. Vertebrates could stand severer toxicity in comparison with invertebrates. α -endosulfan showed a greater toxicity towards aquatic plants and microorganisms than others, while p , p '-DDT turned out to be the most hazardous pollutant to vertebrates and invertebrates among the 16 OCPs studied. Generally speaking, OCPs in study areas didn't show conspicuous ecological risks towards aquatic organisms, DDTs and α -endosulfan, however, are still worth paying close attention due to their high potential risks.
فهرسة مساهمة:	Keywords: ecological risk assessment; margin of safety; organochlorine pesticides; pollution characteristics; species sensitive distribution(SSD); water source areas of Guangdong and Guangxi
المشرفين على المادة:	0 (Hydrocarbons, Chlorinated) 0 (Pesticides) 0 (Water Pollutants, Chemical) 059QF0KO0R (Water) 59NEE7PCAB (Hexachlorocyclohexane) CIW5S16655 (DDT)
تواريخ الأحداث:	Date Created: 20180703 Date Completed: 20181012 Latest Revision: 20221222
رمز التحديث:	20231215
DOI:	10.13227/j.hjkx.2016.06.016
PMID:	29964878
قاعدة البيانات:	MEDLINE

الوصف
تدمد:	0250-3301
DOI:	10.13227/j.hjkx.2016.06.016