Spatial distribution of air quality in Netrokona district town, Bangladesh

Abstract

Air pollution is one of the significant environmental concerning issues in Bangladesh. It has been getting worse at a district level over the past few decades. The main objective of this study was to observe the concentration of Particulate Matter (PM) in Netrokona district town depending on the different uses of land represents. This research was carried out with the assistance of a portable Air Quality Monitor in a total of sixty different places throughout the Netrokona district town. It was revealed that, on average, locations in the district town of Netrokona had particulate matter concentrations (60.97, 99.63, 130.12 µg/m3) respectively. Moreover, averaged PM₂.₅ was 1.53 times fold than Bangladesh's National Ambient Air Quality Standards (NAAQS) level. On the basis of PM₂.₅ concentration, the study demonstrated that three of the most polluted places were located in commercial areas, whereas two of the least polluted places were in sensitive areas. According to estimates, the ratio of PM₂.₅/PM₁₀ was found 76.76%, while the ratio of PM₁/ PM₂.₅ was 61.17%. This research ranks land uses by average PM₂.₅ concentration: mixed area> commercial area> road intersection area> residential area> village area> industrial area> sensitive area.