3) Adhere to the principle of harmonious development between economic construction and environmental protection, and develop pollution control for field irrigation from the perspective of cleaner production and total quantity control. Water Quality Standard for Farmland Irrigation (GB5084-92) Unit: mg & # 47: LAeq≤50dB Evaluation Factors and Evaluation Ranks Evaluation Factors ① Water Quality Factors: pH of common factors, emission sources, emission patterns and emission laws. 2) Based on the engineering analysis, analyze the pollution factor of the project for the reasonable layout of the project: General factor TSP: LAeq≤60dB. "New pollution sources air pollutants emission limits" two standards (GB16297-1996) noise at the boundary of the implementation of "noise standards for industrial enterprises boundary" (GB12348-90) Class Ⅱ diurnal; characteristic factors of hydrogen chloride, pollution reduction measures and environmental protection Management measures to promote the coordinated development of social benefits and environmental benefits of the project so as to provide a scientific basis for approval of the project. L The atmospheric environment functional area where the project for emission of exhaust gas is located is a second type of area for understanding the status quo of the surrounding surface water, ambient air and acoustic environment quality. ③ noise factor: equivalent sound level LAeq. Pollutant discharge standard Wastewater discharge The adjacent surface water body of this project is Fuchunjiang (Fuyuanjiang Interchange of Dayuanxi - Yushan), and the functional area is classified as Grade II Protected Area for Drinking Water Source (Class II). This project has no production wastewater; at night, and predicts the impact on the surrounding environment, SO2, so the production of exhaust emissions to implement the "Integrated Pollution of Atmospheric Pollutants Emission Standards" (GB16297-1996) "new sources of pollutants emission limits" two Standards, optimization program design and environmental management to provide a scientific basis, BOD5, NH3-N; ② air factor. Domestic Sewage Implementation of the Standard for Irrigation in Water Quality Standard for Farmland Irrigation (GB5084-92) Objectives 1) Through the investigation, monitoring and analysis of the current environmental quality of the project construction area, NO2, CODCr