Rice and sugarcane agriculture have been central to the economy, culture, and politics of Thailand, however, there are downsides as they also contribute to waste and pollution due to open burning practices. This study focuses on determining the impact of wind parameters and field burning area on the PM2.5 mass concentration recorded in the vicinity of the capital city of Thailand. The average daily PM2.5 data collected from ground stations located surrounding area of the capital city in 3 years from 2019 to 2021 is chosen to observe the trend of the air quality condition . Wind characteristic including wind velocity and wind path in the same period of study is investigated by statistical method. The results display the correlation between PM2.5 intensity in Bangkok city and the burning area from Northeastern and the Eastern with the correlation coefficient of 0.779 and 0.812. Wind direction shares similar outcome when there is a majority of moderate PM2.5 density found in the Northeast with the same time of the after harvesting progress. The findings are expected to be used for deploying the air quality, understanding the source of pollution and geospatial distribution of PM2.5 mass concentration in Bangkok, Thailand.