[Evaluation and Prediction of Environmental Capacities of Heavy Metals in the Surface Sediments of Lakes in Huoqiu County].

To clarify the environmental capacity of heavy metals in sediments of Chengxi Lake and Chengdong Lake in Huoqiu County, 30 sediment samples were collected from Chengxi Lake and Chengdong Lake, respectively. The environmental capacity characteristics and spatial distribution of heavy metals in sediments of Chengxi Lake and Chengdong Lake were studied using the comprehensive environmental capacity index, the static and dynamic environmental capacity was estimated, and the change trend of nearly one hundred years was predicted. The results showed that the average contents of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn in the sediments of Chengxi Lake and Chengdong Lake did not exceed the national soil risk screening values.