The study evaluates the concentrations of SO₂, NO₂, PM₁₀, and PM2.5 comparing them to annual standards prescribed by CPCB. The annual mean concentrations were 13 µg/m3, 30 µg/m3, 95 µg/m3, and 69 µg/m3 respectively. While SO₂ and NO₂ remained well below the 80 µg/m3 standard, PM₁₀ and PM2.5 exceeded their 24-h limits of 100 µg/m3 and 60 µg/m3 on 44 and 57 occasions, respectively. Seasonal variations in pollutant concentrations are explored in the study, with winter and post-monsoon seasons showing the highest levels of particulate matter as these are the times when temperature inversions and poor dispersion conditions occur. By contrast, higher levels of precipitation and atmospheric mixing during summer and monsoon seasons took care of concentrations. The correlation analysis among pollutants and meteorological parameters using Spearman’s method which showed very strong relationships such as 0.43 for NO₂ and PM₁₀ and 0.41 for NO₂ and AQI, respectively. These studies reveal the ethnic importance of meteorological conditions on air quality and the necessity of season particular pollution control techniques. The study contributes important information that policymakers can use to plan amongst interventions aimed at reducing pollution in semi urban Indian environments and for continuous monitoring.

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Statistical Analysis of Air Pollutants and Meteorological Interactions in Kamptee, Nagpur, India

  • Aniket B. Chavan,
  • Divyanshu Saini,
  • Dilip H. Lataye,
  • Vidayanand M. Motghare

摘要

The study evaluates the concentrations of SO₂, NO₂, PM₁₀, and PM2.5 comparing them to annual standards prescribed by CPCB. The annual mean concentrations were 13 µg/m3, 30 µg/m3, 95 µg/m3, and 69 µg/m3 respectively. While SO₂ and NO₂ remained well below the 80 µg/m3 standard, PM₁₀ and PM2.5 exceeded their 24-h limits of 100 µg/m3 and 60 µg/m3 on 44 and 57 occasions, respectively. Seasonal variations in pollutant concentrations are explored in the study, with winter and post-monsoon seasons showing the highest levels of particulate matter as these are the times when temperature inversions and poor dispersion conditions occur. By contrast, higher levels of precipitation and atmospheric mixing during summer and monsoon seasons took care of concentrations. The correlation analysis among pollutants and meteorological parameters using Spearman’s method which showed very strong relationships such as 0.43 for NO₂ and PM₁₀ and 0.41 for NO₂ and AQI, respectively. These studies reveal the ethnic importance of meteorological conditions on air quality and the necessity of season particular pollution control techniques. The study contributes important information that policymakers can use to plan amongst interventions aimed at reducing pollution in semi urban Indian environments and for continuous monitoring.