| Literature DB >> 25262947 |
Zihan Zhai1, Jing Wu2, Xia Hu1, Li Li1, Junyu Guo1, Boya Zhang3, Jianxin Hu1, Jianbo Zhang4.
Abstract
The concentrations of trifluoroacetic acid (TFA) were measured in urban landscape waters, tap water and snows in Beijing, China in 2012. Compared with the 2002 measurements, a 17-fold increase from 23-98ngL(-1) to 345-828ngL(-1) was observed for TFA concentrations in urban landscape waters, and an obvious increase from not detected (n.d.) to 155ngL(-1) occurred to TFA in tap water. By flux estimation between air and water interface, the remarkable increase of TFA was attributable to dry and wet deposition. The quantitative water-air-sediment interaction (QWASI) model simulated TFAs in various environmental media and showed that, over 99% of TFA distributed in water bodies. Our results recommend that measures are needed to control the increase of TFA in China.Entities:
Keywords: Concentration; Deposition; QWASI model; Trifluoroacetic acid; Water
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Year: 2014 PMID： 25262947 DOI： 10.1016/j.chemosphere.2014.09.033
Source DB: PubMed Journal: Chemosphere ISSN： 0045-6535 Impact factor: 7.086