Ecological risk evaluation of heavy metals in surface sediment in coastal area of Feiyun River

doi:10.3969/j.issn.1004-1524.2017.10.16

›› 2017, Vol. 29 ›› Issue (10): 1706-1711.DOI: 10.3969/j.issn.1004-1524.2017.10.16

• Environmental Science • Previous Articles Next Articles

Ecological risk evaluation of heavy metals in surface sediment in coastal area of Feiyun River

CHEN Xingxing, HUANG Zhenhua, PAN Qicun^*, LU Rongmao, ZENG Guoquan, KE Aiying, HUANG Zhixing, YE Shen

Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-resource, Wenzhou 325005, China

Received:2017-03-07 Online:2017-10-20 Published:2017-12-05

Abstract

Abstract: In order to explore the status of water environmental quality at Feiyun River estuary, surface sediments of 14 sites were collected in Ruian and Pingyang region in August 2016. The contents of heavy metals in surface sediment were analyzed with no flame and flame atomic absorption spectrophotometry, and the ecological risk of heavy metals were assessed by Hakanson potential ecological risk index. It was shown that the situations of heavy metals pollution in the 2 sample areas were similar. The average contamination index of Cu, Zn and Cr was greater than 1, and reached the medium pollution level. The average comprehensive contamination index of Ruian and Pingyang was 5.34 and 5.87, respectively, which were located in the low pollution level. The ecological risk index of Pingyang (21.03) was greater than that of Ruian(18.37), indicating low ecological risk level. As influenced by the river and tributaries of the Aojiang Feiyun flow, the pollution of Pingyang region was more severe than that of Ruian.

Key words: coastal area of Feiyun, heavy metals, surface sediment, ecological risk

CLC Number:

X502

CHEN Xingxing, HUANG Zhenhua, PAN Qicun, LU Rongmao, ZENG Guoquan, KE Aiying, HUANG Zhixing, YE Shen. Ecological risk evaluation of heavy metals in surface sediment in coastal area of Feiyun River[J]. , 2017, 29(10): 1706-1711.

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Ecological risk evaluation of heavy metals in surface sediment in coastal area of Feiyun River

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