ORIGINAL RESEARCH
Concentrations of Heavy Metals in Six Municipal
Sludges from Guangzhou and Their Potential
Ecological Risk Assessment for Agricultural
Land Use
Jingyong Liu1, Zhongxu Zhuo1, Shuiyu Sun1, Xunan Ning1, Suying Zhao2,
Wuming Xie1, Yujie Wang1, Li Zheng1, Rong Huang3, Bing Li4
Pol. J. Environ. Stud. 2015;24(1):165-174