Simulation of thermal power plant source contribution to ambient air concentration in Cam Pha City, Quang Ninh province using AERMOD dispersion model
- Cơ quan:1 Faculty of Environment, Hanoi University of Mining and Geology, Vietnam
2 Faculty of Environment, Vietnam National University of Agriculture, Vietnam
- Từ khóa: AERMOD, Air pollution, Cam Pha, Dispersion model, Thermal power plant.
- Nhận bài: 20-01-2022
- Chấp nhận: 19-04-2022
- Đăng online: 30-06-2022
- Lĩnh vực: Môi trường
Cam Pha, the home of three major thermal power plants including Cam Pha, Mong Duong I and Mong Duong II, is one of the most important industrial cities in the North of Vietnam. Air pollution due to stacks emission is the biggest problem threatening Cam Pha City's sustainable development. In this study, the AERMOD modeling system was used to evaluate the impact of the stack emission by the thermal power plants on the ambient atmospheric environment. The maximum 1-HR, 24-HR, 99th percentile and annual average concentrations of TSP, SO2 and NO2 were simulated within the 40x40 km domain of 100x100 m grid spacing with the hourly meteorological data taken from 2018 to 2020. Air dispersion simulation is performed on the observed background gas concentration of the everyday environment. Hourly emission data of 10 primary stack sources of 3 factory groups were used as input data. The simulated spatial distribution of gases indicates the strong fluence of the mountainous topography on the dispersion of stack emission. Results also revealed that the maximum short-term stack emission at ground-level concentrations of SO2 and NO2 are much higher than the national standard, thus raising the risk of severe pollution. TSP pollution is less severe than SO2 and NO2 but still at a dangerous level. Since Cam Pha locates by the East Sea with the prevailing wind is heading northeast and east directions. The annual average concentrations of these pollutants indicate that the high terrain areas at the south and northwest of Cam Pha City, which block the flow of the stack emission, are the most affected regions by exhausted gases from industrial stacks.
. Huertas, J. I., Huertas, M. E., Izquierdo, S., González, E. D., (2012). Air quality impact assessment of multiple open pit coal mines in northern Columbia. Journal of Environmental Management 93(1). 121-29.
. Mazzeo, N. A., Venegas, L. E., (2008). Design of an air-quality surveillance system for Buenos Aires city integrated by a NOx monitoring network and atmospheric dispersion models. Environmental Modelling and Assessment 13(3). 349-56.
. Krzyzanowski, J., (2011). Approaching cumulative effects through air pollution modelling. Water, Air and Soil Pollution 214. 253-73.
. Seangkiatiyuth, K., Surapipith, V., Tantrakarnapa, K., Lothongkum, A. W., (2011). Application of the AERMOD modeling system for environmental impact assessment of NO2 emissions from a cement complex. Journal of Environmental Sciences 2011 23(6). 931-40.
. Silverman, K. C., Tell, J. G., Sargent, E. V., Qiu, Z., (2007). Comparison of the industrial source complex and AERMOD dispersion models: case study for human health risk assessment. Journal of Air and Waste Management Association 57(12). 1439-46.
. Suadee, W., (2008). Assimilation capacity of Map Ta Phut industrial complex: according to AERMOD. Environmental Engineering Association of Thailand Yearbook and Directory. Environmental Engineering Association of Thailand. Thailand. 83-84.
Các bài báo khác