山东省某典型工业城镇土壤重金属污染特征及风险评估

曾蛟, 孔令号, 刘淑亮, 褚宏宪, 赵正鹏, 杨开丽, 郭旭军, 陈亮

Contamination characteristics and risk assessment of soil heavy metals in a typical industrial town in Shandong Province, China

ZENG Jiao, KONG Ling-Hao, LIU Shu-Liang, CHU Hong-Xian, ZHAO Zheng-Peng, YANG Kai-Li, GUO Xu-Jun, CHEN Liang

表7 土壤重金属元素单因子污染评价

Table 7 Single factor pollution assessment of heavy metal elements in soils

元素 污染指数范围 污染指数均值 不同污染级别样点占比/% 无污染 轻微污染 轻度污染 中度污染 重度污染 Hg 0.14~7.59 1.51 26.1 55.5 13.0 3.6 1.8 Cu 0.10~20.35 0.85 87.4 10.2 1.4 0.4 0.6 Ni 0.20~8.46 0.85 83.4 15.8 0.4 0 0.4 Zn 0.22~18.21 0.90 81.6 17.6 0 0.4 0.4 As 0.22~6.48 1.18 30.1 67.5 2.0 0 0.4 Cr 0.31~8.23 0.88 86.8 12.6 0.2 0 0.4 Cd 0.24~59.57 1.34 46.5 47.5 3.6 0.8 1.6 Pb 0.47~12.76 1.11 42.5 55.5 1.4 0 0.6