Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8862807 | Atmospheric Pollution Research | 2017 | 8 Pages |
Abstract
The pollution levels and health risks of phthalic acid esters (PAEs) in atmospheric particulates in a typical arid urban area of China were studied and discussed in this paper. Gas chromatography-mass spectrometry (GC-MS) was used to analyze the PAE concentrations at seven sites in Changji City during all four seasons. The results indicated that total PAE in atmospheric particulates ranged from 40 to 388 ng mâ3 in 2014. The PAE concentrations also showed significant seasonal variation with relatively higher values in summer and autumn (191 and 319 ng mâ3) than in spring and winter (70 and 55 ng mâ3). Dibutyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) were found as predominant compounds in PAEs accounting for ca. 90% of the total. Evidence confirms that factors including anthropogenic activities and total suspended particulate matter concentration (TSP) influenced the spatial distribution of phthalates in the atmosphere. The non-cancer and cancer risks assessment of PAEs using U.S. EPA method showed that the respective values were <1 for the former, and <10â6 for the latter; therefore, both of them were within the acceptable level and met the international guidelines. The study here establishes a baseline for future monitoring and management of these contaminants in arid area.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
He-Hua Zeng, Hong-Xi Zhang, Xia Wu, Hong-Xin Gu, Li-Zhong Zhang, Yu-Yan Liu, Xiu-Feng Zhao, Jian-Hui Li,