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The concentration, distribution, compositional characteristics, and pollution sources of 16 polycyclic aromatic hydrocarbons (PAHs) in the topsoil of Issyk-Kul Lake Basin were studied, and their ecological risks were evaluated in this paper. The total concentration of the 16 PAHs was 68.58–475.95 ng g−1, with an average of 134.45 ng g−1. Four-ring PAHs accounted for 43.2% of the total PAHs, two- and...
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