湄洲湾牡蛎体重金属和石油烃的含量及评价

本文利用1998年4月和8月据湄湾环境调查资料,分析了牡蛎体重金属和石油烃的含量及分布。结果表明:湄洲湾福建炼油厂码头(上西)附近海域,牡蛎体重金属和石油烃的含量明显高于湾内其他养殖区。Cu、Cd、Zn 和石油烃的含量分布呈湾西岸水域>湾东岸水域>湾口水域。牡蛎体Cu污染指数的范围和平均值分别为0.17-0.88和0.30,属微污染到轻污染水平。Pb、Cd、Zn污染指数的范围和平均值分别为0.008-0.09、0.06-0.24、0.03-0.13和0.05、0.13、0.08,总体上属清洁水平。

Concentration and Assessment of Heavy Metals and Petroleum Hydrocarbon in the Oysters from Meizhou Bay, Fujian Province

Besed on the environmental investigated data from the Meizhou Bay of Fujian Province in April and August 1998. the concentrations and distributions of heavy metals and petroleum hydrocarbon in the oysters were analyzed. The results could be summarized as follows: The content of heavy metals and petroleum hydrocarbon in the oysters collected from the waters nearby refinery-wharf was much higher than that in other culture areas in the Bay. The content of Cu, Cd, Zn and petroleum hydrocarbon in the oysters varied sampled different areas in the Meizhou Bay. the sequence is : The western waters' > the eastern waters '> waters' in the mouth of the Bay. The polluted indexes of Cu in oysters ranged from 0.17 to 0.88 with an average of 0.30, indicating the minute polluted by Cu in the Bay. The indexes of Pb, Cd and Zn in oysters ranged from 0.008 to 0.09. 0.06 to 0.24. 0.03 to 0.13. respectively. Their averages are 0.05. 0.13 and 0.08. respectively, and it indicated that the waters in Meizhou Bay were clean.