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Assessment and source analysis of heavy metal contamination in water and surface sediment in Dongping Lake, China by Zhanfei Zhang; Na Yu; Dingying Liu; Yinghao Zhang is a Environmental Science article available to read on EtoBox.

What is Assessment and source analysis of heavy metal contamination in water and surface sediment in Dongping Lake, China about?

Dongping Lake is the only natural lake in the lower Yellow River and an important hub of South-North Water Diversion Project, its water quality is of vital importance to the environmental protection and the security of water supply. To assess the heavy metal (HM) contamination in Dongping Lake, samples in water and surface sediment were taken from 59 sampling sites over the entire lake. The statistical characteristics, pollution conditions, and source identifications were analyzed using coupling methods of entropy water quality index (EWQI), modified pollution index (mC d ), enrichment coefficient (EF), geo-accumulation index (I geo ), potential ecological risk index (PERI), and positive matrix factorization (PMF). In present study, the averaged concentrations of all studied HMs in water body of Dongping Lake were below the limit of drinking water quality standard recommended by WHO, and the EWQI and mC d of HM concentrations were identified to be in good and excellent conditions. The concentrations of almost all studied HMs in surface sediment of Dongping Lake exceeded the background values in the soil of Shandong Province, and Cd (cadmium) was the dominant pollutant. With EF > 2,

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Author

Zhanfei Zhang; Na Yu; Dingying Liu; Yinghao Zhang

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)