Spatial distribution of heavy metals in the West Dongting Lake floodplain, China

Dong Peng; Ziyu Liu; Xinyue Su; Yaquin Xiao; Yuechen Wang; Beth A. Middleton

doi:10.1039/c9em00536f

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USGS · 70210106

Spatial distribution of heavy metals in the West Dongting Lake floodplain, China

Dong Peng·Ziyu Liu·Xinyue Su·Yaquin Xiao·Yuechen Wang·Beth A. Middleton

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Abstract

The protection of Dongting Lake is important because it is an overwintering and migration route for many rare and endangered birds of East Asia and Australasia, but an assessment of heavy metal contamination in West Dongting Lake is lacking. A total of 75 sediment samples (five sites x three sediment depths x five repeats) were collected in West Dongting Lake in January 2017 to assess the spatial distribution and ecological risk of heavy metal in West Dongting Lake. Heavy metal values varied by sediment depth including As, Cd, Zn, and Cu, with depth giving an indication of recent vs. historical deposition. The major input of Hg, Cu, Ni may come from continued anthropogenic activities related to regional industrial activities within Yuan River and Li River whereas, the major sources of spread Cd pollution may be from agricultural fertilizers.

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Environmental Science: Processes and Impacts Article

Source-reported bounding extent: 28.289870471423562° to 29.38217507514529° latitude; 111.456298828125° to 112.82409667968749° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Dong Peng, Ziyu Liu, Xinyue Su, Yaquin Xiao, Yuechen Wang, Beth A. Middleton. 2020. Spatial distribution of heavy metals in the West Dongting Lake floodplain, China. https://doi.org/10.1039/c9em00536f

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