One-century sedimentary record of heavy metal pollution in western Taihu Lake, China

Environmental Pollution
Yan LiShaohua Wu

Abstract

Long-term trends of sediment compositions are important for assessing the impact of human activities on the sediment and protecting the sediment environment. In this study, based on the contents of heavy metals and the Pb isotope ratios in lake sediments, atmospheric dustfall and soil in Yixing, China, the representative heavy metals (Zn, Pb, Cr and Cd) in lake sediments from western Taihu Lake were studied. The evolution history of heavy metals in the local environment was constructed for the past 100 years. From 1892 to the 1990s, the anthropogenic fluxes of the representative heavy metals were negligible, indicating minimal anthropogenic emissions of heavy metals. Since the 1990s, anthropogenic fluxes of the representative heavy metals began to increase, concurrent with the economic growth and development in the western Taihu Lake Basin after the Chinese economic reform. The maximum flux percentage of the heavy metals in the sediments, caused by human activities, is 23.0% for Zn, 31.6% for Pb, 39.5% for Cr and 85.3% for Cd, indicating that most of the Cd comes from human activities. The Cd content in the western Taihu Lake Basin was significantly higher than that in the other areas, and the rapid development of the industry ...Continue Reading

Citations

May 19, 2019·Environmental Science and Pollution Research International·Yu QianXuexiu Chang
Nov 28, 2018·International Journal of Environmental Research and Public Health·Yan LiShaohua Wu
Jul 25, 2018·International Journal of Environmental Research and Public Health·Yan LiShaohua Wu
Nov 21, 2020·Environmental Science and Pollution Research International·Bo LiQi Zhang
Jul 1, 2020·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Ning DiJohn T Trumble
Nov 27, 2021·Environmental Science and Pollution Research International·Shanying LiZhenyu Ni
Jan 15, 2022·Environmental Science and Pollution Research International·Xiaohua MaShuaidong Li

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