Assessment the Potential of Nutrient Pollution Caused by Household Waste and Livestock (Case Study: Cham Gardalan's dam Watershed)

The purpose of this study is to identify the sources of pollution in the catchment area of ​​Chamgardalan Dam and to determine the potential for contamination of organic matter in the household and livestock waste of the catchment area and finally to provide guidelines for controlling and reducing pollution. After preparing the catchment area using Arc GIS10 software, field visits were conducted to accurately identify the sources of contamination of the catchment area, including villages and livestock units. Then, the contamination potential of organic matter in household and animal wastes was calculated. Then, the contamination potential of organic matter in household and animal wastes was calculated. About 56% of the total nitrogen load and 54% of the total phosphorus load are produced by various dams under the Gol Gol basin, and about 71% of the pollution potential from population centers is under the Gol Gol basin and 17% is under the Chaviz basin. And 12% below the basin. Accordingly, Gol Gol basin, due to the high density of rural population and also having the largest number of livestock and poultry farms in the catchment area, has the highest amount of household and livestock waste compared to the other two sub-basins.