Impact of Biomass Burning on Ozone, Carbon Monoxide, and Nitrogen Dioxide in Northern Thailand

The problem of smoke haze pollution in Northern Thailand affects both the environment and residents. main sources are wildfires open burning during dry season, which release many pollutants, especially surface O 3 , impacting health causing an air crisis. aim this research was to study impact biomass on CO, NO 2 levels using Weather Research Forecasting Model with Chemistry (WRF-Chem). simulation domain configured two domains a grid spacing 50 10 km March 2014. To elucidate effect burning, model conducted for cases: 1) anthropogenic, biogenic, emissions; 2) excluding emissions. Owing performance, diurnal temperature precipitation were consistent observations, as indicated by index agreement (IOA) ranges 0.74–0.76, while those 0.12–0.71. results show that increased 9, 51, 96%, respectively.