• 研究报告 •

### 大伙房水库3种邻苯二甲酸酯分布特征与风险评价

1. 1沈阳建筑大学市政与环境工程学院， 沈阳 110168； 2中国科学院沈阳应用生态研究所， 沈阳 110016）
• 出版日期:2020-08-10 发布日期:2021-02-10

### Distribution characteristics and risk assessment of three PAEs in Dahuofang Reservoir.

NIU Ming-fen1, WANG Zheng-yan1,2, MA Jian2*, CHEN Xin2, LI Na1,2#br#

1. (1School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China; 2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China).
• Online:2020-08-10 Published:2021-02-10

Abstract: Dahuofang Reservoir is a major drinking water source in Liaoning Province, the water safety of which is important for this area. In this study, we collected water samples from the reservoir and three main inflow rivers and measured the contents of phthalic acid esters (PAEs). After that, we analyzed the spatial distribution and seasonal variation of PAEs. The results showed that the PAEs content in the reservoir area increased first and then decreased from east to west. In the three rivers, there was a gradual increase trend of PAEs content from upstream to downstream. The PAEs showed seasonal variation, with an order of summer>spring>autumn. Dibutyl phthalate (DBP) was detected in all sampling locations. DBP and di2ethylhexyl phthalate (DEHP) had a certain homology and were negatively related to the concentration of total nitrogen and total phosphorus in water. The results of risk exposure model showed that the non-carcinogenic risk index of DBP in Dahuofang Reservoir was far less than 1, which would not be harm to human body.