【摘要】 <正> 为了了解渤海湾砷的污染状况,我们于1979年5月下旬对砷在渤海湾海水、底质及生物之间的分布和转换规律进行了调查研究,报告如下。 调查范围与方法 调查范围是在39°10′—38°40′N;117°37′—180°00′E。共设立14个站位,详见图。 表层海水样品用聚乙烯桶采集,用硝酸调pH至1,(贝宁)存于聚乙烯瓶中;底质用彼得森采泥器采集,自然风干后,研碎混匀,用G52号更多还原

【Abstract】 The arsenic contents in sea water, sediments, and benthods in Bohai Bay at 14 stations were determined in May 1979. The range of concentrations of arsenic in water varied from 0.56 to 2.1μg/1, with an average of 1.4μg/1; arsenic contents of sediments ranged from 9.9 -16.4 mg/kg, with an average of 12.8 mg/kg. The highest value is at the southern stations. This may be due to the arsenic enriched sediments of the Huanghe River. The levels of arsenic in benthonic organisms varied from 0.78-6.17 mg/kg, the highest being in a species of crustacean. Arsenic contents in Area subcrenata round the sites near the coast showed lower values than those far from the coast.The levels of arsenic in three mediums of Bohai Bay approach to baseline levels.更多还原