To assess the public’s understanding of the major sources of air pollution in Dhaka city, a face–to–face questionnaire survey was conducted in different location of Dhaka city in 2021. A total of 2500 man and women between 20-60 years of age participated in this survey. This study reveals that people who were under 40 years old with higher education level and international travel experience, had higher level of awareness of air pollution. According to this study the top three sources of air pollution were road constructions (30%), brick kilns and industries (29%) and vehicles (15%). The findings from this study suggest the need for the government to improve the awareness of the people regarding the sources of air pollution, especially to residents of urban areas with lower level of education to control the air pollution in Dhaka city more effectively and efficiently.