环鄱阳湖区农家菜地土壤重金属风险评价及来源分析

胡春华, 蒋建华, 周文斌

Risk Evaluation and Sources Analysis of Heavy Metals in Vegetable Field Soil of Rural Area Around Poyang Lake

Chun-hua HU, Jian-hua JIANG, Wen-bin ZHOU

表2 农家菜地土壤中重金属分布特征

Table 2 The distribution of heavy metals in vegetable field soil in rural areas

项目 最小值(mg/kg) 最大值(mg/kg) 平均值(mg/kg) 标准差(mg/kg) 变异系数(%) 国标[21] (mg/kg) Zn 54.22 216.67 113.96 49.51 43.45 200 Cu 17.61 69.2 31 15.32 49.42 50 Pb 20.17 63.33 33.87 13.99 41.30 250 Cr 20.33 79 35.61 16.72 45.00 250 Cd 0.06 1.22 0.8 0.42 52.50 0.3