Analysis of the effects of vehicle emission at heavily used intersections along Asian Highway 47 in Indore, India

Abstract

The winter months of November and December 2022 saw simultaneous measurements of Respirable Suspended Particulate Matter (RSPM - PM 10), Gaseous pollutants such as SO2, NO2, Total Vehicular Pollution load, and Air Quality Index at the busiest traffic divergence corridor on Asian Highway 47 at Indore city, which is IDTL Toll Manglia & Bicholi Mardana. Utilizing a respirable dust sampler, the sampling process was carried out in accordance with CPCB regulations. With the use of a respirable dust sampler, the morning at IDTL Toll Manglia and Bicholi Mardana Square has the lowest RSPM (101.45 µg/m3) and the highest RSPM (152.78 µg/m3). During the month, the lowest recorded RSPM value in the morning was 100.15 µg/m3, while the maximum was 139.73 µg/m3. During nighttime peak hours, Bicholi Mardana recorded the lowest value of 143.68 µg/m3 and the greatest concentration of 173.38 µg/m3. Conversely, IDTL Toll Manglia recorded the lowest concentration of 168.58 µg/m3 and the highest concentration of 190.82 µg/m3. The concentration of gaseous pollutants was found to be higher at IDTL Toll Manglia and lower at Bicholi Mardana & AQI. Both sampling stations showed signs of moderate quantities in the morning, while heavy concentrations were found at both in the evening. With the appropriate sample sites, this data can be used to assess the current state of vehicular pollution and aid in the formulation of future preventive strategies.