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
图4 研究区重金属含量分级示意
Fig.4 Distribution of heavy metal contents in sediments of researched area