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4 研究区土壤重金属元素含量统计特征

Table 4 Statistical characteristics of heavy metal contents in soils

重金属 均值/10-6 标准差 偏度 峰度 变异系数/% 范围/10-6 背景值[38]/10-6 背景值变异系数/% Hg 0.051 30.9 2.8 13 60.3 0.005~0.258 34 47.0 Cu 22.19 29.6 13.1 200.2 133.5 2.66~529.00 26 52.0 Ni 20.44 10.9 11.3 171.7 33.3 4.90~203.00 24.6 39.0 Zn 54.6 50.5 18.2 371.7 92.5 13.3~1100.0 60.4 30.0 As 7.52 2.9 3.8 39.2 39.0 1.4~41.50 6.4 34.0 Cr 50.32 24.1 13.2 212.2 47.9 17.7~472.00 57 38.0 Cd 0.160 0.4 16.9 323.5 218.1 0.029~7.200 0.12 35.0 Pb 30.070 18.8 12 181.6 62.5 12.857~347.100 27.2 23.0