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Combustion of coal in coal-fired power plants produces air pollution such as SO 2 , NO x , CO 2, and Particulates. The Jeranjang power plant in West Lombok Regency uses 300,000 tons/year of coal to generate 75 MW of electricity. It can be a large potential for environmental pollution. This research aims to simulate the potential of SO 2 and CO 2 exhaust gas dispersion to the environment and the fatality percentage caused by burning the Jeranjang coal power plant using the Gauss Model. The research was conducted by a literature study and direct observation of PLTU Jeranjang. After that, in this research, the SO 2 and CO 2 concentration were calculated. At the end of the study, estimating the potential dispersion and fatality percentage by SO 2 and CO 2 gas was also calculated around the Jeranjang power plant. The results are SO 2 dispersion with a dispersion mass of 0.145 kg/sec from a distance of 2,000 to 46,000 m increased from 1x10 -45 to 1.9x10 -5 ppm and decreased to 0 ppm. The fatality percentage generated is 0%. The CO 2 dispersion potential into the environment without a mass of 12.378 kg/sec increases at a distance of 2,000 to 58,000 m, from a concentration of 2.7x10 -65 to 0.00184 ppm. The CO 2 concentration decreases to 0 ppm. The fatality percentage generated is 0%. The calculation of settlement dispersion around the PLTU Jeranjang can be safe from SO 2 and CO 2 dispersion, and the fatality percentage generated is 0%.

Simulation of Dispersion Potential and Fatality Percentage of SO2 and CO2 Flue Gas from Combustion of Coal in West Lombok Power Plant using Gaussian Model