期刊
ATMOSPHERIC ENVIRONMENT
卷 74, 期 -, 页码 199-208出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2013.02.053
关键词
Phthalate acid esters; PM10; PM2.5; Distribution; Sources; Temperature
资金
- Study on the influence of wind erosion dust from suburban surface on urban air quality and the key protection technology and demonstration Special Environmental Research Fund for Public Welfare [200909005]
- Science and Technology Key Project of Tianjin [09ZCGYSF01700]
Phthalic acid esters (PAEs) are produced in large amounts throughout the world and are excessively used in various industries, which have posed a serious threat to human health and the environment. An investigation of six major PAEs congeners in atmospheric PM10 and PM2.5 was synchronously conducted at seven sites belonging to different functional zones in spring, summer and winter in Tianjin, China in 2010. Results showed that the average concentrations of DMP, DEP, DBP, BBP, DEHP and DOP in PM10 were 0.88, 0.73, 12.90, 0.15, 98.29 and 0.83 ng m(-3), respectively, and in PM2.5, they were 0.54, 0.30, 8.72, 0.08, 75.68 and 0.33 ng m(-3), respectively. DEHP and DBP were the predominant species. The industrial site exhibited highest PAEs values as 135.9 +/- 202.8 ng m(-3). In winter, the detected percentages for DOP were low. The other five PAEs concentrations were higher in winter than those in spring and summer, which may be related to the influence of emission sources, meteorological parameters and the chemical physical characteristic of themselves. Except for DOP, other PAEs were negatively correlated with ambient temperature and the relationships were the best fitted as exponential forms. Significant positive correlations were found for PAEs in PM2.5 and PM10, indicating common sources. The PM2.5/PM10 ratios (0.53-0.70) for the six PAEs concentrations suggested that they were preferentially concentrated in finer particles. Principal component analysis indicated the emission from cosmetics and personal care products, plasticizers and sewage and industrial waste-water may be important sources for PAEs in atmospheric particulate matter in Tianjin. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据