南海北部沿岸近江牡蛎有机氯杀虫剂含量与食用安全性分析  

Organochlorine Residue in Oysters(Crassostrea rivularis)Living Along the Coast of Northern South China Sea and Edible Safety Analysis

作　　者：甘居利[1] 贾晓平[1] 蔡文贵[1] 陈海刚[1] 马胜伟[1] 

机构地区：[1]中国水产科学研究院南海水产研究所/农业部海水养殖生态与质量控制重点开放实验室/广东省渔业生态环境重点实验室,广东广州510300

出　　处：《生态与农村环境学报》2011年第2期6-10,共5页Journal of Ecology and Rural Environment

基　　金：科技部社会公益研究专项(2005DIB3J021);广东省科技计划(2009B030600001)

摘　　要：于2008—2010年每年春季,在南海北部沿岸23个观测站分别采集成体近江牡蛎(Crassostrea rivularis),测定了牡蛎有机氯杀虫剂含量,并探讨了有机氯杀虫剂残留对牡蛎食用安全性的影响。结果表明,牡蛎有机氯杀虫剂平均含量(μg.kg-1,以湿质量计)高低依次为:DDTs 4.68(含量范围1.53～9.77)>硫丹2.58(nd～17.6)>氯丹1.12(nd～11.2)>三氯杀螨醇0.514(nd～4.42)>甲氧氯0.300(nd～2.66)>异狄氏剂0.229(nd～4.82)>环氧七氯0.182(nd～1.65)>异狄氏剂醛0.159(nd～1.16)>艾氏剂0.138(nd～1.72)>BHCs 0.130(nd～0.727)>狄氏剂0.095(nd～0.237)>七氯0.056(nd～0.531)。除异狄氏剂醛和硫丹外,其他杀虫剂含量明显低于澳大利亚、俄罗斯、欧盟、加拿大、日本和中国的水产品、畜禽肉中有机氯杀虫剂残留限量;硫丹含量低于澳大利亚和加拿大的限量,但少数牡蛎样本中硫丹含量略高于欧盟的限量,接近或超过日本的限量。经食用牡蛎而进入人体的α-BHC、β-BHC、γ-BHCp、p'-DDE、艾氏剂、狄氏剂、异狄氏剂、硫丹、氯丹、七氯、环氧七氯含量明显低于其危害剂量。α-BHC、β-BHC、γ-BHC、pp'-DDD、pp'-DDE、pp'-DDT、艾氏剂、狄氏剂、氯丹、七氯、环氧七氯对人体致癌风险可以接受。Samples of oysters （ Crassostrea rivularis） were collected from 23 observation sites along the coast of the northern South China Sea in spring every year during 2008 -2010. Contents of organoehlorine pesticides in their tissues were analyzed with gas chromatography, and effects of the residues on edible safety of the oysters explored. Contents （ ug · kg^-1 , mean of wet weight） of the residues in the oysters were found to be in a decreasing order of DDTs （4. 68 with a range of 1.53 - 9. 77 ） 〉 endosulfan （2. 58, nd - 17.6） 〉 chlordan （ 1.12, nd - 11.2 ） 〉 dicofol （0. 514, nd - 4. 42） 〉 methoxyehlor （ 0. 300, nd-2.66）〉 endrin （0.229, nd-4. 82） 〉, beptaeblor epoxide （0. 182, nd- 1.65） 〉 endrin aldehyde （0. 159, nd- 1.16） 〉 aldrin （0. 138, nd- 1.72） 〉 BHCs （0. 130, nd-0.727） 〉 dieldrin （0.095, nd- O. 237 ） 〉 heptachlor （0. 056, nd- 0. 531 ）. However, they all were significantly lower than the residual limits stipulated by Australia, Russia, the European Union （EU） , Canada, Japan and China for their aquatic products, livestock and poul- try meats, except for endosulfan and endrin aldehyde. Even though the concentration of endosulfan was still below the lim- its set by Australia and Canada, however, in a few oyster samples, the concentration of endosulfan was a bit higher than the EU limit, and close to or beyond Japan＇s limit. The intake of c~ - BHC,/3 - BHC, y - BHC, pp＇ - DDE, aldrin, dieldrin, endrin, endosulfan, chlordan, heptaehlor and heptaehlor epoxide with oysters was obviously much lower than the dosages harmful to human health. So their carcinogenic risks are acceptable.

关 键 词：南海北部 食用牡蛎 有机氯杀虫剂 安全性分析 

分 类 号：X592[环境科学与工程—环境工程] X132