汉江上游水体沉积物污染状况分析与评价

杨婵, 吴娟娟, 车旭曦, 岳思羽, 刘智峰, 宋凤敏

Pollution analysis and assessment of sediments in the upper reaches of the Hanjiang River

YANG Chan, WU Juan-Juan, CHE Xu-Xi, YUE Si-Yu, LIU Zhi-Feng, SONG Feng-Min

表6 汉江上游表层沉积物中重金属潜在生态风险系数

Table 6 Potential ecological risk coefficient of heavy metals in surface sediments in the upper reaches of Hanjiang River

样点 单项潜在生态风险系数(Ei) 综合潜在生态 危害指数(R) V Cr Mn Co Ni Cu Zn As Cd Pb S1 1.12 1.58 1.16 4.26 4.83 5.13 0.53 5.29 327 4.26 355.16 S2 2.83 2.03 5.92 10.16 11.77 13.85 1.06 29.18 264 7.06 347.85 S3 0.60 0.48 0.85 3.03 2.38 3.55 0.42 3.84 96 2.90 114.04 S4 1.13 1.57 1.36 6.52 5.01 7.55 0.79 12.52 894 6.33 936.78 S5 1.74 2.09 1.62 7.61 13.23 10.26 2.31 12.36 222 4.77 277.99 S6 0.90 0.97 0.84 3.36 2.07 2.65 0.44 6.85 1266 4.27 1288.35 S7 0.91 1.22 0.97 3.68 2.23 3.14 0.58 7.27 153 9.02 182.03 S8 0.95 1.29 0.87 2.67 2.08 2.37 0.55 5.60 204 3.12 223.52 S9 0.49 1.53 1.49 5.83 4.24 6.08 0.76 7.72 4455 9.65 4492.81 S10 0.78 1.12 0.82 3.38 2.11 2.64 0.43 6.21 126 4.68 148.16 S11 1.09 1.48 1.49 4.95 5.19 5.65 0.77 10.67 447 3.87 482.14 S12 1.86 1.75 1.52 5.83 4.95 6.70 0.92 11.31 591 5.55 631.39 S13 1.26 1.34 1.17 5.38 4.03 4.94 0.73 10.46 990 5.28 1024.59 S14 0.68 0.70 0.23 1.58 0.59 1.99 0.47 1.31 408 2.60 418.14 S15 0.99 1.33 1.04 4.84 3.73 4.64 0.67 8.86 741 3.54 770.66 S16 1.07 1.11 0.86 4.38 1.92 3.15 0.19 7.36 48 2.75 70.80 S17 2.29 1.75 1.52 7.27 3.27 7.76 0.62 9.59 108 3.99 146.06 均值 1.22 1.37 1.40 4.98 4.33 5.42 0.72 9.20 667 4.92 700.62