福建省东山湾生态环境中滴滴涕(DDTs)的分布特征及风险评价

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福建省东山湾生态环境中滴滴涕(DDTs)的分布特征及风险评价
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                        姜琳琳姜琳琳
福建省水产研究所, 福建 厦门 361012
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余颖余颖
福建省水产研究所, 福建 厦门 361012
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苏捷苏捷
福建省水产研究所, 福建 厦门 361012
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钟硕良钟硕良
福建省水产研究所, 福建 厦门 361012
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作者单位:福建省水产研究所, 福建 厦门 361012
作者简介:姜琳琳(1981), 女, 工程师, 主要从事水产品质量安全研究工作. E-mail: jllhzau@163.com
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中图分类号:S96; X171
基金项目:国家海洋局海洋公益性行业科研专项(201005012).

Distribution characteristics and risk assessment of Dichloro-diphenyl- tricgloroethanes in Dongshan Bay, China

Author:

JIANG Linlin
JIANG Linlin
Fujian Provincial Institute of Fisheries, Xiamen 361012, China
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YU Ying
YU Ying
Fujian Provincial Institute of Fisheries, Xiamen 361012, China
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SU Jie
SU Jie
Fujian Provincial Institute of Fisheries, Xiamen 361012, China
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ZHONG Shuoliang
ZHONG Shuoliang
Fujian Provincial Institute of Fisheries, Xiamen 361012, China
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Affiliation:

Fujian Provincial Institute of Fisheries, Xiamen 361012, China

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摘要:

(5, 残留水平、分布趋势和组成特征污染状况及其生态风险进行了评价。结果表明质量浓度范围分别为ND~36.7 ng/L, DDTs(7.75±2.07) ng/L浓度分布呈夏季高于春季、近岸高于远岸、由湾内向湾外下降但邻近漳江入海口海域的站可能有新的污染源输入。含量范围(9.00±5.34) μg/kg, (3)含量范围在15.70 μg/kg, 均值为,

关键词:滴滴涕; 东山湾; 生态环境; 风险评价

Abstract:

into the residue, distribution, and composition of Dichloro-diphenyl-tricgloroethanes (DDTs) in sea water, sediment, and cultured shellfish in Dongshan Bay was carried out in spring(May) and summer(August), 2011. We also evaluated the contamination status and ecological risks. The results were as follows: irst, the DDT content in the sea surface layer varied from non-detectable(ND) to 25.7 ng/L in May and from ND to 36.7 ng/L in August, the average values were (6.08±3.02) ng/L and (16.30±4.78) ng/L, respectively; the DDT content in the bottom layer varied from ND to 30.6 ng/L and from ND to 36.7 ng/L, the average values were (7.75±2.07) ng/L and (13.30±5.12) ng/L in May and August, respectively. In general, the DDT concentration distribution in Dongshan Bay declined from the inner to outer bay and from the near- to far-shore. DDT concentrations in summer were higher than those in spring. Compared with other bays in China, DDTs pollution in Dongshan Bay was at a lower level status; however, it is likely that there has been a recent pollutant input in sites DS03 and DS11. Second, the DDT content in the sediment varied from 5.56−12.8 μg/kg, the average value was (9.00±5.34) μg/kg. The concentration declined from the inner to the outer bay. DDT residue in the sediment may have negative effects on organisms, the toxicity risk index varied from 25% 75%. Third, the DDT content varied among different species of cultured shellfish from 1.68‒26.60 μg/kg and the average was 15.70 μg/kg. The pollution index varied from 0.007 to 2 .660, the average was 1.580. This exceeded the standard rate by 71.4% and the highest value was 1.66 fold. These results show that some shellfish have been contaminated by DDTs. This problem requires further attention and must be resolved.

Key words:DDTs; Dichloro-diphenyl-tricgloroethanes; Dongshan Bay; ecological environment; risk evaluation

引用本文

姜琳琳,余颖,苏捷,钟硕良.福建省东山湾生态环境中滴滴涕(DDTs)的分布特征及风险评价[J].中国水产科学,2013,20(5):1057-1065
JIANG Linlin, YU Ying, SU Jie, ZHONG Shuoliang. Distribution characteristics and risk assessment of Dichloro-diphenyl- tricgloroethanes in Dongshan Bay, China[J]. Journal of Fishery Sciences of China,2013,20(5):1057-1065

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在线发布日期: 2013-09-26
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