期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：233
期号：4
页码：042002
DOI：10.1088/1755-1315/233/4/042002
出版社：IOP Publishing
摘要：Using investigation data on Mercury (Hg) in May and August, 1990, this paper analyzed the pollution level and identified the source of Hg in Jiaozhou Bay. Results showed that Hg contents in May and August, 1990, were 0.007-0.208 μg L-1 and 0.011-0.055 μg L-1, respectively. The pollution level in May was moderate, compared to slight polluted in August. The major sources of Hg were river discharge, wharf, atmosphere deposition and marine current, whose source strengths were 0.166-0.204 μg L-1, 0.053-0.194 μg L-1, 0.055-0.208 μg L-1 and 0.200 μg L-1, respectively. The various Hg sources indicated the influence of anthropogenic activities on water quality in this bay. Furthermore, marine current became one of the major Hg source 1990, that was to say the background pollution level of Hg in the ocean was high since 1990. In general, source control should be one of the preferred countermeasures for pollution control in marine bay.
