皖南典型区耕地土壤重金属富集特征、来源识别及健康风险评估
杨艳, 刘彬, 夏飞强, 陈平峰, 张祥

Enrichment characteristics, source identification, and health risk assessment of soil heavy metals in typical cultivated land in the mountainous area of southern Anhui Province
YANG Yan, LIU Bin, XIA Fei-Qiang, CHEN Ping-Feng, ZHANG Xiang
表4 土壤重金属不同暴露途径的RfDSF[12,15-16]
Table 4 RfD and SF of different heavy metal exposure pathways
元素 参考计量RfD/mg·(kg·d)-1 致癌斜率SF/[mg/(kg·d)]-1
经口 皮肤 呼吸 经口 皮肤 呼吸
As 3.00×10-4 1.23′10-4 4.29′10-6 1.50 1.50 15.10
Cd 1.00×10-3 2.50′10-5 2.86′10-6 6.30
Hg 3.00×10-4 2.14′10-5
Pb 1.40×10-3 5.24′10-4 8.50×10-3 4.20×10-2
Cr 3.00×10-3 3.00′10-5 2.86′10-5 5.01×10-1 2.00′101 4.20′101
Ni 2.00×10-2 5.40′10-3 9.00′10-5 1.70 4.25′101 8.40×10-1
Cu 4.00×10-2 1.20′10-2
Zn 3.00×10-1 6.00′10-2