柳江流域沉积物重金属生态风险评价及来源分析

钟晓宇, 吴天生, 李杰, 郑国东, 卓小雄, 关东超, 王磊, 莫斌吉

Ecological risk assessment and source analysis of heavy metals in sediments of Liujiang River Catchment

Xiao-Yu ZHONG, Tian-Sheng WU, Jie LI, Guo-Dong ZHEN, Xiao-Xiong ZHUO, Dong-Chao GUAN, Lei WANG, Bing-Ji MO

表5 柳江各河段沉积物重金属元素地累积指数

Table 5 Igeo index of heavy metals in sediments of Liujiang Rriver Catchment

河段 As Cd Cr Cu Hg Ni Pb Zn 融江 -0.06 -0.02 -1.45 -0.83 -1.32 -1.40 -0.81 -0.73 柳江 -0.77 1.05 -1.51 -0.93 -1.14 -1.42 -0.62 -0.45 金城江 -0.51 2.33 -1.48 -1.24 -0.16 -1.65 1.04 0.68 龙江 -1.20 0.69 -1.48 -1.25 -1.60 -1.83 -0.78 -0.81 洛清江 -2.28 -1.01 -1.87 -1.35 -2.02 -1.84 -1.58 -1.70 罗秀河 -2.23 -2.00 -1.86 -1.38 -2.96 -1.95 -1.00 -1.92