西安重度以上污染天气PM2.5重金属污染特征与健康风险

王鑫, 肖舜, 董治宝, 曹军骥, 张宁宁, 刘随心, 沈振兴, 徐红梅, 管清玉, 陶燕, 蔡瑞婷, 王雨萌

Pollution characteristics and health risk of heavy metals in PM2.5 in severely polluted weather in Xi'an， China

Xin Wang, Shun Xiao, Zhibao Dong, Junji Cao, Ningning Zhang, Suixin Liu, Zhenxing Shen, Hongmei Xu, Qingyu Guan, Yan Tao, Ruiting Cai, Yumeng Wang

表2 重金属暴露参考剂量(RfD)和致癌斜率因子(SF)[35-36]

Table 2 Reference doses and slope factors of the heavy elements[35-36]

元素 RfD/(mg·kg- 1·d- 1) 元素 RfD/(mg·kg- 1·d- 1) SF/(kg·d·mg-1) V 7.00x10-3 Cr 2.86 x10-5 42 Mn 1.43x10-5 Co 5.71 x10-5 9.8 Cu 4.02x10-2 Ni 2.06x10-2 0.84 Zn 3.00x10-1 As 3.01x10-4 15.1 Pb 3.52x10-3