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Occurrence and Fluxes of Polycyclic Aromatic Hydrocarbons in the Third Largest Fresh Water Lake (Lake Taihu) in China.
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2020-04-18 , DOI: 10.1007/s00128-020-02847-4 Zifan Wu 1, 2 , Yuqiang Tao 1, 3
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2020-04-18 , DOI: 10.1007/s00128-020-02847-4 Zifan Wu 1, 2 , Yuqiang Tao 1, 3
Affiliation
Polycyclic aromatic hydrocarbons (PAHs) pose great risks to lake ecosystem and human health. Comprehensive knowledge on PAHs in lakes is critical for their risk control. 118 samples were collected from different environmental medium to study the occurrence and fluxes of 16 PAH in Lake Taihu. The average ∑PAH16 in air, water, phytoplankton, zooplankton, suspended particle matter, and surface sediments were 122 ng m-3, 61.3 ng L-1, 6500 ng g-1, 4940 ng g-1, 27,900 ng g-1, and 522 ng g-1, respectively. Sediments were contaminated by PAHs from pyrogenic sources. The average fluxes of air-water, dry deposition, and sinking of the 16 individual PAHs were 2900, 300, and 251 ng m-2 d-1. In the air-water column-surface sediments system, air-water exchange was the main transport pathway. In order to ensure safety of drinking water resources for local residence, the governments are suggested to work together to reduce PAHs emission and implement new energy policy.
更新日期：2020-04-18
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