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.
|Title||Spatial distribution of heavy metals in the West Dongting Lake floodplain, China|
|Authors||Dong Peng, Ziyu Liu, Xinyue Su, Yaquin Xiao, Yuechen Wang, Beth Middleton|
|Publication Subtype||Journal Article|
|Series Title||Environmental Science: Processes and Impacts|
|Record Source||USGS Publications Warehouse|
|USGS Organization||Wetland and Aquatic Research Center|