[Occurrence and Ecological Risk Assessment of Typical Persistent Organic Pollutants in Hengshui Lake].

• DOI: 10.13227/j.hjkx.201908036
• Publication Date: 2020-03-08
• Authors: Jiawen Zhang; Jian Wei; Yifan Lu; Liang Duan; Li Liu; Jian Wang; Shu-Jin Meng
• Keywords: China; Geologic Sediments; Lakes; Rivers; Hydrocarbons, Chlorinated; Environmental Pollutants; Polycyclic Aromatic Hydrocarbons; Risk Assessment; Water Pollutants, Chemical; Environmental Monitoring

Sediment samples were collected from 11 typical sites in Hengshui Lake separately August 2018 and March 2019. Characteristics ecological risk assessment of persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs), these sediments analyzed. The results showed that the average content ΣPAHs was 875.49 ng·g-1 1010.17 2019, respectively. Compared with other regions China abroad, at moderate pollution level. Distribution varied between different sites, but values changed within a narrow range seasons. Sources PAHs complex, combustion wood coal main source, followed by oil pollution. Generally, low However, fluorene control should be strengthened. For ΣOCPs, 35.57 38.39 March, regions, ΣOCPs In addition, distribution small amount sites. There significant differences two contents DDTs mainly related to residual after long-term soil weathering input recent sources. Contents HCHs influenced use industrial history inputs agricultural lindane. OCPs medium level, ΣPBDEs, 1.77 1.45 they lower ΣPBDEs did not obviously vary spring summer. PBDEs low-bromine PBDEs, which might contaminated penta-BDEs textiles foams. Additionally, also probably distant settlement migration atmosphere, flushing into lake. posed no immediate risk.