|
| Investigation and Assessment of Heavy Metals in Soil and Plants from a Sealed Landfill in Zengcheng, Guangzhou, China |
| |
| View Full Text View/Add Comment Download reader |
| KeyWord:Zengcheng landfill; soil; plant; heavy metal; investigation and assessment |
|
|
| Hits: 2843 |
| Download times: 1988 |
| Abstract: |
| Heavy metals（including Cu, Zn, Cd, Cr and Ni） in soil and plants from a sealed landfill were investigated and assessed. All the samples were collected from a landfill located in Zengcheng of Guangzhou, and the concentrations of heavy metals were determined by flame atomic absorption spectrophotometry. The results showed that the soil of the landfill was alkaline soil, and the agricultural soil near to the sealed landfill was acidic soil. The soil in this sealed landfill was polluted mainly by Cd element. The bare soil in the 3rd point was polluted slightly by Cu and Cd which exceeds the background value of soil in Pearl River Delta. The agricultural soil in the 5th point was in a safe state, while the soil in other points was in alert state. Besides, there were four kinds of native plant in the sealed landfill, which are Phragmites, Dicranopteris, Bidens pilosa, Mikania micrantha. In each plant, among five elements, the concentration of Zn was highest, and that of Cd was lowest. |
|
|
|
