Numerical Evaluation and Management Suggestions for Heavy Metal Pollution Risks in a Sludge Landfill: A Case Study from Fuyong Landfill, Shenzhen, China

Table 1

Measured concentrations of heavy metal pollutants in the landfill.

Heavy metal pollutants	Cd	Cu	Ni	Pb	Zn
Mean concentration (mg/L)	0.03	3.51	3.34	0.09	2.60
Class III standard of underground water (mg/L) [10]	0.005	1.00	0.02	0.01	1.00
Excess multiple	6.00	3.51	167.00	9.00	2.60