Impacts of human activities on the spatial distribution and sources of polychlorinated naphthalenes in the middle and lower reaches of the Yellow River
作者： Qilu Li , Xianghui Cheng , Yan Wang , Zhineng Cheng , Liya Guo
DOI: 10.1016/J.CHEMOSPHERE.2017.02.130
关键词:
摘要: The concentrations and compositions of polychlorinated naphthalenes (PCNs) in sediments suspended particulate matters (SPM) the middle lower reaches Yellow River were investigated. mean PCNs 7.15 ± 19.3 ng/g dw sediment 38.1 58.4 SPM. Tri- tetra-CNs dominant homologue groups most samples. CN-23 was predominant congener at all sites, its presence may be attributed to coal combustion. Combustion indicators showed that local combustion source main contributor PCN concentrations. These sources related energy structure this region, where is important resource. Human activities, including industrial thermal processes reservoir construction, major factors affecting levels hydrological conditions, which strongly influenced environmental fate River.
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