Table 4 The material source and factor contribution rate of different water sources based on PMF operation.
From: The present situation and pollution sources of underground drinking water in Zhangjiakou, China
Area | Factor-1 | Factor-2 | Factor-3 | Factor-4 | Factor-5 | Factor-6 | |
|---|---|---|---|---|---|---|---|
GWS | Pollution source | Livestock and poultry breeding | Domestic sewage | Pesticide use | Farm manure loss | Geological process | Soil leaching |
Contribution rate ( % ) | 14.68 | 16.51 | 19.25 | 18.73 | 15.78 | 15.04 | |
TWS | Pollution source | Geological process | Industrial wastewater | Farm manure loss | Pesticide use | livestock and poultry breeding | Domestic sewage |
Contribution rate ( % ) | 17.60 | 10.65 | 13.83 | 25.35 | 16.11 | 16.47 | |
YWS | Pollution Source | Fecal Pollution | Industrial Wastewater | Mixed Source | Leaching From manganese ore | Municipal Waste | Pesticide Use |
Contribution rate ( % ) | 13.82 | 14.80 | 18.21 | 12.67 | 13.84 | 26.65 | |
