Pollution characteristics and quality assessment of heavy metals in surface sediments from the Liaodong Bay

Lan Xianhong; Meng Xiangjun; Mei Xi; Xu Yang; Huang Long; Chen Shanshan

doi:10.3969/j.issn.0253-4193.2018.06.006

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Lan Xianhong, Meng Xiangjun, Mei Xi, Xu Yang, Huang Long, Chen Shanshan. Pollution characteristics and quality assessment of heavy metals in surface sediments from the Liaodong Bay[J]. Haiyang Xuebao, 2018, 40(6): 60-73. doi: 10.3969/j.issn.0253-4193.2018.06.006

Citation:

Lan Xianhong, Meng Xiangjun, Mei Xi, Xu Yang, Huang Long, Chen Shanshan. Pollution characteristics and quality assessment of heavy metals in surface sediments from the Liaodong Bay[J]. Haiyang Xuebao, 2018, 40(6): 60-73. doi: 10.3969/j.issn.0253-4193.2018.06.006

Citation:

Lan Xianhong, Meng Xiangjun, Mei Xi, Xu Yang, Huang Long, Chen Shanshan. Pollution characteristics and quality assessment of heavy metals in surface sediments from the Liaodong Bay[J]. Haiyang Xuebao, 2018, 40(6): 60-73. doi: 10.3969/j.issn.0253-4193.2018.06.006

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Pollution characteristics and quality assessment of heavy metals in surface sediments from the Liaodong Bay

doi: 10.3969/j.issn.0253-4193.2018.06.006

Key Laboratory of Marine Hydrocarbon Resource and Environmental Geology, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China

Received Date: 2017-08-11
Rev Recd Date: 2017-10-30

Abstract

Abstract

The present study analyzed the distribution and pollution characteristic of heavy metals in surface sediments from the Liaodong Bay, and then evaluated the potential ecological risk caused by heavy metals to learn the environment quality of sediments. Content distributions of heavy metals including As,Cu,Cd,Cr,Hg,Ni,Pb and Zn in surface sediments from the Liaodong Bay were studied. Simultaneously,the potential ecological risks of these heavy metals were analyzed by the index method on potential ecological risk and geoaccumulation index(I_geo) and Environment quality in surface sediments from the Liaodong Bay was evaluated. The contents of As,Cu,Cd,Cr,Hg,Ni,Pb and Zn in surface sediments appeared higher near the Huludao,southeast sea of the Liugu estuary in the southwest part,near sea in the western. The results of pollution assessment by index of geoaccumulation and the potential ecological risk index were almost the same. The order of ecological risk of these heavy metal is as follow:Cd > Hg > Cu > Pb > As > Zn > Ni > Cr,with Cd,Hg and As being the potential risk elements for the ecological environment from the Liaodong Bay. The assessment result of ecological risk revealed this area belongs to moderate potential ecological risk. The environmental quality assessment showed that the heavy metals in surface sediments from the Liaodong Bay were not likely to cause harmful biological effects,but Cd and Hg were significantly enriched,therefore much attention should be paid to these areas.
- Liaodong Bay,
- surface sediment,
- heavy metals,
- quality assessment

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