Research on the pollution of heavy metals in the water of Shunyi section on Chaobai River and Hanshi Bridge wetland

Abstract

Abstract: Objective To understand the pollution levels of heavy metal elements in the water of Shunyi section on Chaobai River and Hanshi Bridge wetland，and provide scientific reference data for the management of reclaimed water and make-up wetland in the region. Methods The sampling points were set in Shunyi section of Chaobai River and Hanshi Bridge wetland，and the water samples were collected in April（wet season） and October（dry season） 2021 respectively. Six kinds of heave metals（Zn，Cu，As，Pb，Cd，Cr） in the samples were quantitatively analysed with the developed methods，and the heavy metals polluted levels of the two wetlands were evaluated. Results The concentrations of six kinds of heavy metals in the reclaimed water wetlands were 0.06-9.72 μg/L，which were lower than those of the national surface water Ⅲ water quality standard. The concentrations of Zn，Cu and As in dry season were higher than that in wet season（all P<0.05）. Conclusion The pollution levels of six kinds of heavy metals（Zn，Cu，As，Pb，Cd，Cr） in the water of Shunyi section on Chaobai River and Hanshi Bridge wetland were generally lower.

Key words: Reclaimed water, Wetland, Heavy metal

CLC Number:

R123

ZHENG Qi-guang, LIU Sheng-tian, ZHU Mei-juan, LI Yong-ji, WANG Jing. Research on the pollution of heavy metals in the water of Shunyi section on Chaobai River and Hanshi Bridge wetland. [J]OCCUPATION AND HEALTH, 2023, 39(1): 80-83.

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