土壤—农作物系统中重金属元素地球化学特征及健康风险评价
王志强, 倪萍, 张宏绪, 石天池, 杨建锋, 张惠玲

Geochemical characteristics and health risk assessment of heavy metals in soil-crop systems
WANG Zhi-Qiang, NI Ping, ZHANG Hong-Xu, SHI Tian-Chi, YANG Jian-Feng, ZHANG Hui-Ling
表14 根系土重金属致癌风险指数
Table 14 Carcinogenic risk index of heavy metals in root soil
CR(Cr) CR(As)
儿童 3.19×10-6 1.29×10-5
成人 1.86×10-6 7.54×10-6