A 17-fold increase of trifluoroacetic acid in landscape waters of Beijing, China during the last decade

Zihan Zhai; Jing Wu; Xia Hu; Li Li; Junyu Guo; Boya Zhang; Jianxin Hu; Jianbo Zhang

doi:10.1016/j.chemosphere.2014.09.033

A 17-fold increase of trifluoroacetic acid in landscape waters of Beijing, China during the last decade

Chemosphere. 2015 Jun:129:110-7. doi: 10.1016/j.chemosphere.2014.09.033. Epub 2014 Sep 26.

Authors

Zihan Zhai¹, Jing Wu², Xia Hu¹, Li Li¹, Junyu Guo¹, Boya Zhang³, Jianxin Hu¹, Jianbo Zhang⁴

Affiliations

¹ Collaborative Innovation Center for Regional Environmental Quality, State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
² Collaborative Innovation Center for Regional Environmental Quality, State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; China Waterborne Transport Research Institute, Beijing 100088, China.
³ School of Public Health, Peking University, Beijing 100191, China.
⁴ Collaborative Innovation Center for Regional Environmental Quality, State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. Electronic address: jbzhang@pku.edu.cn.

PMID: 25262947
DOI: 10.1016/j.chemosphere.2014.09.033

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.

Keywords: Concentration; Deposition; QWASI model; Trifluoroacetic acid; Water.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Beijing
Environmental Monitoring*
Models, Theoretical
Seasons
Trifluoroacetic Acid / analysis*
Water / chemistry*
Water Pollutants, Chemical / analysis*

Substances

Water Pollutants, Chemical
Water
Trifluoroacetic Acid