To cite this article: Suryati, I., Khair, H. & Gusrianti, D. (2018). Analysis of air quality index distribution of PM10 and O3 concentrations in ambient air of Medan city, Indonesia. J. Phys. Sci., 29(Supp. 3), 37–48, https://doi.org/10.21315/jps2018.29.s3.5
Development of industries and increase in transportation usage directly affect air quality. Some pollutants have negative impacts on human health and the environment, such as particulate matter 10 microns (PM10) and ozone (O3). Distribution of PM10 and O3 concentrations from various emission sources in urban areas provide basic information to facilitate development of policies, programs and regulations related to air pollution control. This study aims to map and analyse the air quality index distribution of PM10 and O3 in the city of Medan, Indonesia. This research was conducted by sampling PM10 and O3 at 12 sampling points throughout the city. The concentration of PM10 was measured using laser dust monitor model LD 1, while the concentration of O3 was measured using impinger and chemiluminescent analysis. The results showed that the air quality index obtained was from 23 (good) to 155 (unhealthy) for PM10, and from 8 (good) to 87 (medium) for the O3 parameter. The mapping of air quality index distribution for PM10 and O3 was done by using Surfer 10 to illustrate the distribution of areas with the unhealthy category for PM10 and the medium category for O3 located in Medan Belawan sub-district. Air pollution control can be done by applying clean technology for the industry sector and mass transportation for transportation sector.