云南省镇雄县土壤重金属污染及潜在生态风险评估
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周亚龙, 郭志娟, 王成文, 陈杰, 彭敏, 成杭新
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Assessment of heavy metal pollution and potential ecological risks of soils in Zhenxiong County,Yunnan Province
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Ya-Long ZHOU, Zhi-Juan GUO, Cheng-Wen WANG, Jie CHEN, Min PENG, Hang-Xin CHENG
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表4 调查区玉米籽实样品分析结果统计
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Table 4 Statistical table of analysis results of corn seed samples in study area
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元素 | 植物籽实重金属含量/10-6 | 富集系数/% | GB2762-2017 上限值/10-6 | 超上限值 样品数 | 最大值 | 最小值 | 平均值 | 中位数 | 最大值 | 最小值 | 平均值 | 中位数 | As | 0.029 | 0.015 | 0.020 | 0.019 | 0.461 | 0.067 | 0.185 | 0.182 | 0.5 | 0 | Cr | 0.175 | 0.092 | 0.103 | 0.099 | 0.198 | 0.037 | 0.096 | 0.096 | 1 | 0 | Cd | 0.189 | 0.006 | 0.022 | 0.015 | 29.844 | 0.388 | 2.867 | 1.424 | 0.1 | 1 | Cu | 3.646 | 1.444 | 2.698 | 2.756 | 15.205 | 1.351 | 6.190 | 6.007 | | | Hg | 0.004 | 0.001 | 0.002 | 0.002 | 5.559 | 0.137 | 1.361 | 1.083 | 0.02 | 0 | Ni | 0.395 | 0.070 | 0.154 | 0.134 | 1.363 | 0.086 | 0.360 | 0.297 | 1 | 0 | Pb | 0.063 | 0.032 | 0.042 | 0.040 | 0.198 | 0.010 | 0.092 | 0.086 | 0.2 | 0 | Zn | 32.754 | 14.782 | 21.322 | 21.008 | 68.137 | 2.034 | 16.759 | 14.410 | | |
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