State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environ Geochem Health. 2012 Aug;34(4):445-56. doi: 10.1007/s10653-011-9445-8. Epub 2011 Dec 28.
Polycyclic aromatic hydrocarbon (PAH) concentrations and their risks in surface sediments (n = 35) collected from coastal and estuarine areas of the northern Bohai and Yellow Seas, China, were investigated in 2008. Total concentrations of PAHs ranged from 52.3 to 1,870.6 ng/g dry weight. The greatest concentrations were observed in the Dou River of Tangshan where waste water from small factories is discharged into the river without treatment. At other locations, municipal sewage was the primary contributor of PAHs. Regional differences in concentrations of PAHs in sediments are related to human activities. Concentrations of PAHs were significantly correlated with concentrations of organic carbon in sediments. The patterns of relative concentrations and types of PAHs observed and knowledge of the potential sources, as well as the results of a principal component analysis, are consistent with the primary sources of PAHs in sediments of the northern Bohai Sea and Yellow Sea, being derived from the high-temperature pyrolytic processes such as combustion of fossil fuel. While concentrations of PAHs at most locations did not exceed the effects range median stated by the numerical effect-based sediment quality guidelines of the United States, concentrations of PAHs at some locations were similar to or greater than the effects range low.
2008 年，调查了中国北部渤海和黄海沿海和河口地区采集的 35 个表层沉积物中多环芳烃（PAH）的浓度及其风险。多环芳烃的总浓度范围为 52.3 至 1870.6ng/g 干重。在唐山的陡河，由于小工厂的废水未经处理就排入河流，多环芳烃的浓度最高。在其他地方，城市污水是多环芳烃的主要来源。沉积物中多环芳烃浓度的区域差异与人类活动有关。多环芳烃的浓度与沉积物中有机碳的浓度显著相关。观察到的相对浓度模式和多环芳烃的类型，以及潜在来源的知识，以及主成分分析的结果，与渤海北部和黄海沉积物中多环芳烃的主要来源一致，源自高温热解过程，如化石燃料的燃烧。虽然大多数地点的多环芳烃浓度没有超过美国基于数值效应的沉积物质量指南中规定的效应范围中位数，但一些地点的多环芳烃浓度与效应范围低值相似或更高。
