菏泽市水系沉积物重金属特征及风险评估

徐雄, 孙艳亭, 肖方, 肖培平, 董应尚, 李敏

Characteristics and risk assessment of the heavy metals in stream sediments of Heze City

XU Xiong, SUN Yan-Ting, XIAO Fang, XIAO Pei-Ping, DONG Ying-Shang, LI Min

表5 沉积物重金属污染因子评价结果

Table 5 Evaluation results of contamination factors of heavy metals in sediments

污染因子 污染程度 Cu Zn Ni Cr Cd Pb 点位 占比 点位 占比 点位 占比 点位 占比 点位 占比 点位 占比 Cf<1 低度 6 24% 6 24% 0 0% 9 36% 0 0% 7 28% 1≤Cf<3 中度 19 76% 19 76% 25 100% 16 64% 15 60% 18 72% 3≤Cf<6 重度 0 0% 0 0% 0 0% 0 0% 10 40% 0 0% Cf≥6 严重 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%