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| Residues of Endosulfan in Ostrea Oysters（Crassostrea rivularis） from Near Sea Water of South China |
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| KeyWord:coast near sea of South China; oysters; endosulfan; distribution; composition |
| Author Name | Affiliation | | GAN Ju-li | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） | | KE Chang-liang | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） | | CHEN Jie-wen | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） | | CHEN Hai-gang | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） | | MA Sheng-wei | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） | | LI Liu-dong | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） | | JIA Xiao-ping | South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science
Fishery Environment and Aquatic Products Quality Supervision and Testing Center（Guangzhou），Ministry of Agriculture P. R. China，Guangzhou 510300, China） |
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| Abstract: |
| Endosulfan is an organochlorine insecticide and may finally enter sea water body. During 2008—2012, Ostrea oysters（Crassostrea rivularis） were collected from near sea waters of South China to determine contents of endosulfan in the soft tissues of Ostrea oysters by gas chromatography equipped with quartz capillary column and electric catch detector. The endosulfan contents in oyster samples trended to decrease during five years. Of all 115 samples, forty samples were detected to have endosulfan, ranging from 1.03 μg·kg-1 to 12.2 μg·kg-1（wet weight）, much lower than the residual limits of Australia and Canada, as well as human intake limit by the World Health Organization. However, endosulfan contents in two samples were higher than the limit of Europe Union and 16 greater than the Japanese limit. There were differences in endosulfan contents among twenty-three sampling sites. The average contents of endosulfan were in order of Guangdong coast（2.13 μg·kg-1 w.w.）> Hainan coast（1.23 μg·kg-1 w.w.）> Guangxi coast（0.76 μg·kg-1 w.w.）. The isomer composition of endosulfan in oyster samples showed that its current application occurred the most possibly in Guangdong Province, followed by Guangxi Province and the least in Hainan Province. |
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