Application Of AERMOD In Regional Planning Atmospheric Environmental Impact Assessment

2008China has proposed new guidelines for Atmospheric Environmental Impact Assessment. AERMOD become widely used atmospheric prediction model for EIA worker. According to which the latitude and longitude of the location, climate and weather statistics feature completeness, the new guidelines recommend a model used in China is still in the exploratory stage, the parameters of the model prediction results need more practice and experience. For regional planning, the project involved a wide variety and scattered layout whitch made atmospheric environmental impact assessment difficulty to determine the scope prediction and forecasting model selection.This article aims to study and explore the AERMOD model in regional planning EIA. By the model principle, the model input data and parameters on the predicted results of the impact study and model application test in circular economy industrial park in hexipu learning how to apply the model correctly. The methods of study is literature summary、forecast simulation test and the chemical recycling hexibao economic industrial Park Case Study.First, according to learning and research, Download high-altitude data provided by the website AERMOD predicted results less affected due to inadequate sounding meteorological data, the data is not comprehensive, due to the number of layers is not enough. By affecting the surface heat flux (H) the surface parameters Bowen ratio and albedo affect the structure of the boundary layer, decide the AERMOD forecast equations for calculating selected; The surface roughness length by affecting the surface friction velocity and Monin-Auburn Hove length affect the height of the mixing layer and the run parameters-wind. Surface parameters input partition to improve the accuracy of the input parameters, partitioning method should be in accordance with the specific terrain features within the forecast range.Secondly, using the method of fuzzy mathematics results are verified AERMOD model predictions derived AERMOD model pollutants SO2and NO2diffusion simulation with good usability and credibility. With the maximum concentration values of the prediction method of analysis and evaluation of the credibility of the results is higher.Finally, a case study of using AERMOD to predict hexibao chemical recycling economy industrial park atmospheric pollution concentrations, the results showed park planning new projects to air pollutants generated by the park surrounding environment have an impact, but its impact in the environment can withstand range.This study, for the correct choice of AERMOD model input data and correct input surface parameters with some guidance and reference value, AERMOD for complex terrain conditions in our regional atmospheric EIA application has a certain reference value.