Effects of Forest Filtering and Cold Trapping on Polycyclic Aromatic Hydrocarbons Distribution in Southeast Tibet
作者机构：School of EnvironmentHangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou310024China State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085China University of Chinese Academy of ScienceBeijing100049China
出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)
年 卷 期：2023年第39卷第3期
页 面：399-407页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金：supported by the National Natural Science Foundation of China(No.22021003) the Zhejiang Provincial Natural Science Foundation,China(No.LY23B070001)
主 题：Polycyclic aromatic hydrocarbon Forest filter effect Cold trapping effect Tibet Altitude
摘 要：New pollutants in remote regions have become a global issue of *** study collected soil,lichen,moss,and air samples from the high mountain area of southeastern Tibet to analyze the altitude pollution distribution of 16 polycyclic aromatic hydrocarbons(PAHs)and the related influencing *** results revealed that the average levels ofΣ6PAH in soil,moss,lichen,and air samples were 46.8 ng/g dry weight(dw),140.6 ng/g dw,712.0 ng/g dw,and 60.1 ng/m^(3),*** and phenanthrene were the most abundant individual isomers,and 2–4 rings PAHs accounted for approximately 90%of the totalΣPAH concentration in the *** apportionment analysis highlighted the impact of atmospheric PAH inputs on this ***/air distribution factor(K_(oa)),altitude,plant coverage,and soil organic matter were the key determinants of PAH concentration along the altitudinal *** all the soil sampling sites,the average contribution of the forest filter effect(FFE)was greater than that of the mountain cold trapping effect based on the principal component analysis and multiple linear *** findings of this study strengthened the reasons for the preferential accumulation of organic pollutants in the high-altitude mountainous area,and provided important insights for effective environmental strategies of new pollutants.
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