摘要
目的 调查舟山渔场内主要经济鱼类中多种常见毒物含量水平 ,分析其与海洋环境污染状况之间的关系。方法 对舟山渔场生产的主要经济鱼类进行采样、检测分析 ,综合同时期该海域的海洋环境监测相关资料 ,通过典型相关分析 ,评价海洋环境污染和经济鱼类体内毒物蓄积的相关性。结果 舟山海域 9种经济鱼类体内镍平均含量超过限量值 1.177倍。 1997- 2 0 0 3年 7年间舟山渔场 9种主要经济鱼类体内除部分鱼类中镉、汞外的其他毒物含量水平间差异均无统计学意义 (P >0 .0 5 )。不同鱼类对各种毒物的富集系数从 10 1.80至 712 10 .97不等。经济鱼类与海洋环境中铅、砷含量和六六六、滴滴涕含量两组变量间典型相关系数分别为 0 .784、0 .80 8,两者存在典型正相关关系(χ2 =2 0 .994 ,P <0 .0 1;χ2 =38.0 17,P <0 .0 1)。结论 近年来舟山海域生产的经济鱼类体内除镍外其他毒物的卫生质量指数在正常范围内。不同鱼类对各毒物的富集作用不同 ,经济鱼类中的毒物含量与海洋环境中相应毒物浓度之间呈现中高度正相关。
Objective To investigate the contents of poison in fishes in the Zhoushan Fishery and to analysis its relationship with the degree of ocean pollution. Method Nine kinds of major fishes in the Zhoushan Fishery were sampled and tested. Canonical correlation was conducted to evaluate the correlation between contents of poison in fishes and the degree of ocean pollution. Results The average contents of nickel among 9 kinds of fishes exceeded normal value by 1.177 times. No significantly statistical differences were found between the levels of poison contents in nine kinds of major fishes during 1997 to 2003 in the Zhoushan Fishery (the P values are all less than 0.05), except that the levels of cadmium and hydrargyrum in some fishes (the P values are all more than 0.05). The coefficient of fishes accumulated from different poisons ranged from 101.80 to 71 210.97. The canonical correlation coefficients of the variables of the contents of plumbum, arsenic and benzene hexachloride, chlorophennothane between fishes and ocean were 0.784 and 0.808 respectively. Positive correlation between them was shown ( χ2= 20.994, P< 0.01; χ2= 38.017, P< 0.01). Conclusion The sanitary quality indexes of all poisons which had been tested fell in the normal ranges except for nickel. The degrees of poisons accumulated among distinct fishes varied, showing the relationship of medium positive correlation between the poison contents of fishes and the degree of the ocean pollution.
出处
《中华流行病学杂志》
CAS
CSCD
北大核心
2005年第1期18-21,共4页
Chinese Journal of Epidemiology
基金
卫生部科学研究基金资助项目 (98 3 0 0 5 )
