数字农科院2.0

Phthalate Esters (Paes) In Atmospheric P.articles Around A Large S hallow Natural Lake (Lake Chaohu, China)

文献类型： 外文期刊

作者： He, Y; Wang, QM; He, W; Xu, FL

作者机构：

关键词： Phthalate esters (PAEs); Spatiotemporal variations; Composition; Atmospheric particles; Lake Chaohu

期刊名称： SCIENCE OF THE TOTAL ENVIRONMENT

ISSN： 0048-9697

年卷期： 2019 年 687 卷

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： The pollution of phthalate esters (PAEs) remains an important issue in the world. Current studies mainly focused on atmospheric PAEs in urban area with strong anthropogenic activities, but there were no studies on PAEs in the ambient air around large natural lake. This paper focused on two sites around take Chaohu to investigate the monthly occurrence, composition and source of PAEs in the atmospheric particles around large shallow natural lake. New insights into atmospheric PAEs in large shallow natural lake and the overall fate of PAEs in lake ecosystem were given. The concentrations of the Sigma(13)PAEs in atmospheric particles were at a significantly low level ranging from 2740 to 11,890 pg.m(-3) and 2622 to 15,331 pg.m(-3) in ZM (the lakeshore site) and HB (the downtown site), respectively. There were no statistically significant differences of PAEs between ZM and HB. The highest atmospheric PAE concentrations in August were likely related to the long-range transport from Guangdong Province. Di(2-ethylhexyl) phthalate (DEHP), diisobutyl phthalate (DIBP) and dibutyl phthalate (DBP) were the main PAE congeners. Temporally, DIBP and DBP had the highest fractions in winter and the lowest fractions in summer. It might be justified by the condensation of DIBP and DBP from gas phase to particulate phase at low temperature. Multimedia comparison of PAE profiles in Lake Choahu revealed that low molecular weight (LMW) congeners were transported mainly through water while high molecular weight (HMW) congeners were transported mainly through atmosphere. (C) 2019 Elsevier B.V. All rights reserved.

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