|
| Heavy Metal Pollution and Distribution in Riparian Zone Soil and River Sediment in Beijing Suburbs, China:A Case Study in Changping Section of Wenyu River |
| |
| View Full Text View/Add Comment Download reader |
| KeyWord:sediment; soil; heavy metal; distribution; Wenyu River; suburb |
|
|
| Hits: 2084 |
| Download times: 2652 |
| Abstract: |
| To explore the heavy metal concentration and distribution in the Wenyu River in Beijing Suburb, a survey was conducted by collecting and analyzing the surface sediment and riparian zone soil there. Such heavy metals as Cu, Zn, Pb and Cr were examined and the correlation of the content of heavy metals in sediment and riparian zone soil in different layers were also determined. The results indicated that the content of Zn and Pb in the sediment was significantly higher than that in the soil while the content of Cu was significantly lower than that in the soil. Compared with the background value in Beijing soil, Cu, Zn, Pb and Cr were all enriched to certain degree, especially Cr. The spatial distribution of heavy metals in surface soil and sediment had the remarkable regularity, and the sampling point pollution was serious due to factory sewage, waste water drainage outlet and human frequent disturbance. The correlation analysis showed that the content of Cu with Zn, Cr in riparian zone soil and the content of Zn with Cu and Pb in sediment had a significant positive correlation（P<0.01）. In addition, there was significant correlation（P<0.01） between Pb and Cr in soil and those in sediment. The content of Pb and Cr in riparian soil and that in sediment had strong regression relationship. The results revealed that heavy metal pollution in riparian zone soil and pollution in sediment were closely related, and therefore to strengthen the soil pollution control might help to alleviate the heavy metal pollution in water environment. |
|
|
|
