Toxic dust emission from drought-exposed lake beds – a new air pollution threat from dried lakes
Qianqian Gao,Guochao Chen,Xiaohui Lu,Jianmin Chen,Hongliang Zhang,and Xiaofei Wang
Qianqian Gao
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai 200433, China
Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai 200433, China
Xiaohui Lu
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai 200433, China
Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai 200433, China
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai 200433, China
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai 200433, China
Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
Fudan Zhangjiang Institute, Shanghai 201203, China
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2,682
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Total article views: 4,998 (including HTML, PDF, and XML)
Thereof 4,985 with geography defined
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Total article views: 1,598 (including HTML, PDF, and XML)
Thereof 1,585 with geography defined
and 13 with unknown origin.
Total article views: 3,400 (including HTML, PDF, and XML)
Thereof 3,400 with geography defined
and 0 with unknown origin.
Numerous lakes are shrinking, owing to climate change and human activities, releasing pollutants from dried lake beds as dust aerosols. The health risks remain unclear. Recently, Poyang and Dongting lakes faced record droughts, exposing 99 % and 88 % of their areas. We show that lake bed dust can raise PM10 to 637.5 μg m-³ and exceed non-carcinogenic (HQ = 4.13) and Cr carcinogenic (approx. 2.10 × 10−⁶) risk thresholds, posing growing health threats.
Numerous lakes are shrinking, owing to climate change and human activities, releasing pollutants...