[1]许妍,周亚子,陈曦,等.太湖梅梁湾沉积物和水生生物中有机氯农药分布特征及风险评估[J].东南大学学报(自然科学版),2015,45(2):328-335.[doi:10.3969/j.issn.1001-0505.2015.02.023]
 Xu Yan,Zhou Yazi,Chen Xi,et al.Chemical characterization and risk assessment of organochlorine pesticides in sediments and biota from Meiliang Bay of Taihu Lake[J].Journal of Southeast University (Natural Science Edition),2015,45(2):328-335.[doi:10.3969/j.issn.1001-0505.2015.02.023]
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太湖梅梁湾沉积物和水生生物中有机氯农药分布特征及风险评估()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第2期
页码:
328-335
栏目:
环境科学与工程
出版日期:
2015-03-20

文章信息/Info

Title:
Chemical characterization and risk assessment of organochlorine pesticides in sediments and biota from Meiliang Bay of Taihu Lake
作者:
许妍12周亚子1陈曦1缪蜀江1林汉华2秦庆东1
1东南大学土木工程学院, 南京 210096; 2香港城市大学生物与化学系, 香港 999077
Author(s):
Xu Yan12 Zhou Yazi1 Chen Xi1 Miao Shujiang1 Lam Michael Honwah2 Qin Qingdong1
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Department of Biology and Chemistry, City University of Hong Kong, Hong Kong 999077, China
关键词:
有机氯农药 沉积物 水生生物 风险评估
Keywords:
organochlorine pesticides sediment biota risk assessment
分类号:
X835
DOI:
10.3969/j.issn.1001-0505.2015.02.023
摘要:
根据太湖梅梁湾有机氯农药(OCPs)污染情况,采用GC/ECD分析了梅梁湾沉积物,并对4种鱼及螺狮为代表的水生生物中有机氯农药的残留现状进行了风险评估.结果表明:沉积物(干重)中OCPs浓度范围在8.45~48.54 ng/g之间,生物样品(湿重)中的浓度范围在2.68~31.34 ng/g之间.人类食用OCPs污染的水产品的潜在健康风险评估显示,从非致癌风险角度滴滴涕(DDTs)、六氯苯(HCB)、氯丹(CHL)和七氯环氧的危险商RHQ均小于1;从致癌风险角度,除CHL外,DDTs、HCB、六六六(HCHs)、七氯环氧的危险比RHR均大于1,长期癌症风险不容忽视.根据淡水沉积物质量导则标准估算,太湖梅梁湾沉积物中OCPs残留对水生生态系统的影响较小.
Abstract:
To better understand the organochlorine pesticides(OCPs)contamination in Meiliang Bay, Taihu Lake(China), levels of OCPs were measured in the sediment, and the four species of fishes and Bellamya quadrata(Benson)using GC/ECD. The results show that the concentrations of OCPs were found to range from 8.45 to 48.54 ng/g DW(dry weight)in sediments, and from 2.68 to 31.34 ng/g WW(wet weight)in biota tissues. Potential human health risk assessment associated with the above organochlorine contaminants due to the consumption of contaminated aquatic products was conducted. The hazard quotients RHQ of DDTs, hexachlorobenzene(HCB), chlordane(CHL)and heptachlor epoxide were all below unity based on non-cancer endpoints, while the cancer hazard ratios RHR of DDTs, HCB, HCHs and heptachlor epoxide were significantly higher than 1 except CHL’s. Therefore, the long-term cancer risk caused by DDTs, HCB, HCHs and heptachlor epoxide is of great concern. Based on relative freshwater sediment quality guidelines, the contaminations lead to limited adverse effects on the local aquatic system.

参考文献/References:

[1] 刘立丹,王玲,高丽荣,等.鸭儿湖表层沉积物中有机氯农药残留及其分布特征[J].环境化学,2011,30(9):643-649.
  Liu Lidan, Wang Ling, Gao Lirong, et al. Occurrence and distribution of organochlorine pesticides(OCPs)in surface sediments of the Ya-Er Lake in Hubei province, China [J]. Environmental Chemistry, 2011, 30(9): 643-649.(in Chinese)
[2] Jones K C, de Voogt P. Persistent organic pollutants(Pops): state of the science [J]. Environmental Pollution, 1999, 100(1/2/3): 209-221.
[3] Zhao Z H, Zhang L, Wu J L, et al. Distribution and bioaccumulation of organochlorine pesticides in surface sediments and benthic organisms from Taihu Lake, China [J]. Chemosphere, 2009, 77(9): 1191-1198.
[4] 乔敏,王春霞,黄圣彪,等.太湖梅梁湾沉积物中有机氯农药的残留现状[J].中国环境科学,2004,24(5):592-595.
  Qiao Min, Wang Chunxia, Huang Shengbiao, et al. Present residual state of organochlorine pesticides in the sediments of Meiliang Bay, Taihu lake [J]. China Environmental Science, 2004, 24(5): 592-595.(in Chinese)
[5] 袁旭音,王禹,陈骏,等.太湖沉积物中有机氯农药的残留特征及风险评估[J].环境科学,2003,24(1):121-125.
  Yuan Xuyin, Wang Yu, Chen Jun, et al. Organochlorine residues of sediments in Taihu Lake and its risk evaluation [J]. Environmental Science, 2003, 24(1): 121-125.(in Chinese)
[6] Wang X Q, Xu J, Guo C S, et al. Distribution and sources of organochlorine pesticides in Taihu lake, China [J]. Bulletin of Environmental Contamination and Toxicology, 2012, 89(6): 1235-1239.
[7] 赵中华,张路,于鑫,等.太湖表层沉积物中有机氯农药残留及遗传毒性初步研究[J].湖泊科学,2008,20(5):579-584.
  Zhao Zhonghua, Zhang Lu, Yu Xin, et al. Distribution of organochlorine pesticide residues and potential genotoxicity in surface sediments from lake Taihu [J]. Journal of Lake Sciences, 2008, 20(5): 579-584.(in Chinese)
[8] Khim J S, Villeneuve D L, Kannan K, et al. Alkylphenols, polycyclic aromatic hydrocarbons, and organochlorines in sediment from Lake Shihwa, Korea: instrumental and bioanalytical characterization[J]. Environmental Toxicology and Chemistry, 1999, 18(11): 2424-2432.
[9] Xu Y, Yu Y, Gregory K B, et al. Comprehensive assessment of bacterial communities and analysis of PCB congeners in PCB-contaminated sediment with depth [J]. Journal of Environmental Engineering, 2012, 138(12): 1167-1178.
[10] Hung C L H, Xu Y, Lam J C W, et al. A preliminary risk assessment of organochlorines accumulated in fish to the Indo-Pacific humpback dolphin(Sousa chinensis)in the Northwestern waters of Hong Kong [J]. Environmental Pollution, 2006, 144(1): 190-196.
[11] Connell D W, Fung C N, Minh T B, et al. Risk to breeding success of fish-eating Ardeids due to persistent organic contaminants in Hong Kong: evidence from organochlorine compounds in eggs [J]. Water Research, 2003, 37(2): 459-467.
[12] Walker K, Vallero D A, Lewis R G. Factors influencing the distribution of lindane and other hexachlorocyclohexanes in the environment [J]. Environ Science and Technology, 1999, 33(1): 4372-4378.
[13] 罗孝俊,陈社军,麦碧娴,等.珠江三角洲河流及南海近海区域表层沉积物中有机氯农药含量及分布[J].环境科学学报,2005,25(9):1272-1279.
  Luo Xiaojun, Chen Shejun, Mai Bixian, et al. Distribution of organochlorine pesticites(OCPs)in surface sediments in Pearl River Delta and its adjacent coastal areas of South China Sea [J]. Acta Scientiae Circumstantiae, 2005, 25(9): 1272-1279.(in Chinese)
[14] Nakata H, Hirakawa Y, Kawazoe M, et al. Concentrations and compositions of organochlorine contaminants in sediments, soils, crustaceans, fishes and birds collected from Lake Tai, Hangzhou Bay and Shanghai city region, China [J]. Environmental Pollution, 2005, 133(3): 415-427.
[15] Doong R A, Peng C K, Sun Y C, et al. Composition and distribution of organochlorine pesticide residues in surface sediments from the Wu Shi River estuary, Taiwan, China [J]. Marine Pollution Bulletin, 2002, 45(1): 246-253.
[16] Feng K, Yu B Y, Ge D M, et al. Organo-chlorine pesticide(DDT and HCH)residues in the Taihu Lake Region and its movement in soil-water system Ⅰ: field survey of DDT and HCH residues in ecosystem of the region [J]. Chemosphere, 2003, 50(6): 638-687.
[17] Zhang X G. Consumption trends and habits for aquatic products in China [C]//AquaSur International Conference. Santiago, Chile, 2002: 18-19.
[18] MacDonald D D, Ingersoll C G, Berger T A. Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems [J]. Archives of Environmental Contamination and Toxicology, 2000, 39(1): 20-31.

备注/Memo

备注/Memo:
收稿日期: 2014-10-10.
作者简介: 许妍(1980—),女,博士,讲师,101011642@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(41301546, 51408119)、水体污染控制与治理科技重大专项资助项目(2012ZX07101-008)、香港研究资助局资助项目(CityU, 1445/05M).
引用本文: 许妍,周亚子,陈曦,等.太湖梅梁湾沉积物和水生生物中有机氯农药分布特征及风险评估[J].东南大学学报:自然科学版,2015,45(2):328-335. [doi:10.3969/j.issn.1001-0505.2015.02.023]
更新日期/Last Update: 2015-03-20