松花江汞污染综合治理后儿童发汞含量的调查

叶琳; 李静; 隋春生; 王春华; 金明华; 李娟

松花江汞污染综合治理后儿童发汞含量的调查

Survey on mercury level in children's hair after comprehensive management of Songhua river

摘要

摘要:
目的了解松花江主要汞污染源综合治理后, 环境汞污染现状及儿童体内汞蓄积水平。
方法设对照组与观察组, 分别采集地面水、土壤、粮食、鱼及儿童头发, 测定汞含量, 并分别与1982年(治理前)和1992年(即治理10年后)汞含量水平比较。
结果观察组水、土壤、鱼汞含量显著低于1982年及1992年(P < 0.01);与对照组比较差异无统计学意义(P > 0.05), 均未超过相应的卫生标准。观察组粮食汞含量与1982年及1992年相比明显降低(P < 0.01), 但明显高于对照组(P < 0.05)。观察组儿童发汞明显低于1982年及1992年, 与对照组比较差异无统计学意义(P > 0.05)。
结论松花江汞污染综合治理后环境汞污染状况已明显改善, 未发现儿童体内汞蓄积现象。

Abstract:
Objective To investigate the present conditions of mercury-polluted environment and the mercury accumulation in children's body.
Methods The content of mercury in water, soil, food, fish and children's hair was measured and compared with that of 1982 and ten years before.
Results The content of mercury in water, fish, hair were not significantly higher than that in the standards and remarkably lower than that of 1982 and ten years before(P < 0.01).No difference was observed between survey group and control group(P > 0.05).The mercury content in rice of survey group was lower than that of 1982 and ten years before(P < 0.01), and significantly higher than that of control group(P < 0.05).The mercury content in children's hair of survey group was obviously lower than that of 1982 and ten years before, but no significant difference was observed between control group and survey group.
Conclusion The environmental conditions of mercury-polluted Songhua river were greatly improved after comprehensive asdministration and there was no mercury accumulation in children's body.

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