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渤海中部油气开采区石油烃环境质量评价及源解析
Authors
刘旭
姜军成
+4 more
李沅蔚
王传远
纪殿胜
纪灵
Publication date
1 June 2017
Publisher
Abstract
对渤海中部油气开采区表层沉积物中的石油烃含量进行了环境质量评价,分析了正构烷烃和多环芳烃分子组成特征,并对其来源进行了解析.结果表明,石油类浓度为12.5—860 μg/g之间,污染指数为0.61—41.97;随着与采油平台距离的增加,平台周边海域石油烃含量和污染水平呈现降低的趋势;沉积物沉积时为缺氧还原的沉积环境.正构烷烃的分布特征和甾萜烷生物标志化合物表明,源自大陆高等植物和海洋浮游生物的烷烃共存于渤海近代沉积物中,石油类产品和化石燃料燃烧产物对其贡献不能忽视;石油平台站位PAHs主要来自石油的直接输入,其它站位主要来自燃烧源。</p
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Last time updated on 16/09/2020