Abstract Particulate matter (PM) plays a crucial role in air quality deterioration in urban areas. Myanmar is a developing country in Southeast Asia and still in an early phase of urbanization. Yangon is the most populated and urbanized region in Myanmar, hosting 15% of the total population. Reports on particulate pollution in Yangon are limited as well as not up to date. Therefore, the present study aimed to assess distribution of PM₁₀ in Seven Townships of Yangon. The result indicates a significant difference (p<0.001) in PM₁₀ concentrations among the morning (185±85 μg/m³), the afternoon (64±35 μg/m³) and the evening (129±50 μg/m³) respectively. PM₁₀ concentrations at different times of the day except the morning period were within USEPA guideline value for PM₁₀ (150 μg/m³, 24h mean).