东平湖表层沉积物重金属环境容量评价及趋势预测
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于林松, 胡蕾, 王东平, 刘辉, 陈子万, 李华勇, 邓焕广
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Assessment and trend prediction of the environmental capacity of heavy metals in surface sediments of the Dongping Lake, North China
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YU Lin-Song, HU Lei, WANG Dong-Ping, LIU Hui, CHEN Zi-Wan, LI Hua-Yong, DENG Huan-Guang
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表2 研究区表层沉积物重金属描述性统计
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Table 2 Descriptive statistics of heavy metals in surface sediments of the study area
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参数 | As | Cd | Co | Cr | Cu | Hg | Mn | Ni | Pb | Tl | Zn | 均值 | 18.27 | 0.223 | 16.81 | 71.64 | 38.13 | 0.089 | 689.0 | 39.96 | 29.08 | 0.689 | 88.30 | 中值 | 19.10 | 0.237 | 17.50 | 72.20 | 39.80 | 0.044 | 662.0 | 41.70 | 29.90 | 0.685 | 86.80 | 众数 | 19.80 | 0.064 | 14.90 | 48.30 | 36.10 | 0.050 | 486.7 | 44.70 | 29.70 | 0.660 | 86.20 | 最小值 | 9.33 | 0.064 | 10.70 | 48.30 | 17.50 | 0.021 | 486.7 | 24.20 | 19.90 | 0.560 | 45.00 | 最大值 | 31.00 | 0.377 | 23.50 | 92.50 | 64.60 | 1.536 | 1007.2 | 52.00 | 37.50 | 0.870 | 214.00 | 标准差 | 5.13 | 0.08 | 2.59 | 9.14 | 9.78 | 0.25 | 126.04 | 6.26 | 4.02 | 0.07 | 27.23 | 变异系数 | 28.1 | 36.4 | 15.4 | 12.6 | 25.6 | 285.6 | 18.3 | 15.7 | 13.8 | 9.5 | 30.8 | 偏度 | 0.28 | -0.19 | -0.24 | -0.28 | 0.09 | 5.88 | 0.63 | -0.87 | -0.45 | 0.56 | 2.82 | 峰度 | 0.11 | -0.45 | 1.04 | 0.54 | 0.75 | 34.71 | -0.21 | 0.84 | -0.02 | 1.31 | 13.29 | 允许限值 | 25 | 0.6 | 35.4 | 250 | 100 | 3.4 | 1171 | 190 | 170 | 0.90 | 300 | 东平湖周边耕地土壤[30] | 13.10 | 0.130 | - | 80.5 | - | 0.040 | - | - | 25.3 | - | - | 2012年东平湖表层沉积物[28] | 25.30 | 0.285 | - | 89.30 | 52.00 | 0.0550 | - | - | 35.50 | - | 100.50 | 泰安市土壤地球化学背景值[26] | 7.40 | 0.131 | 12.20 | 58.80 | 22.90 | 0.030 | 576 | 27.10 | 22.60 | 0.59 | 63.60 | 山东省湖泊表层沉积物背景值[39] | 17.7 | 0.225 | 16.4 | 86.2 | 37.5 | 0.046 | 806 | 39.8 | 29.1 | 0.69 | 88.8 | 山东省沼泽表层沉积物背景值[39] | 17.6 | 0.176 | 16.7 | 88.8 | 36.1 | 0.029 | 869 | 43.6 | 27.1 | 0.71 | 84.6 | 中国淡水湖泊表层沉积物背景值[40] | 12.10 | 0.220 | - | 85.00 | 32.30 | 0.066 | - | 36.70 | 33.10 | - | 93.00 |
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