Bhumika Kumari Suthar, Vikram Singh and Abhishek Saxena
ABSTRACT
Air quality index instrument is used for air quality monitoring. These five pollutant use for AQI indexing, NO2, PM2.5, CO, PM10, Ozone was used to study air quality in Jodhpur during lockdown (2019-2021). The mean value of PM10, PM2.5, NO2, Ozone and CO were in 189.8, 86.2, 28.8 , 53.3 μg/𝑚3 and 1.15mg/𝑚3 in observed in 25 March to 31 March 2019 and PM10, PM2.5, NO2, Ozone and CO are in 214.4, 106.4, 40.7, 51.8μg/𝑚3 and 1.20mg/𝑚3in observed in 1 April to 31 April 2019 and PM10, PM2.5, NO2, Ozone and CO are in 241.7, 11.4, 34.4, 63.6 8μg/𝑚3 and 1.2320mg/𝑚3in observed in 1 May to 31 May 2019. The mean value of PM10, PM2.5, NO2, Ozone and CO are in 85.4, 44.0, 21.8, 43.0, μg/𝑚3 and 1.07mg/𝑚3 in observed in 25 March to 31 March 2020 and PM10, PM2.5, NO2, Ozone and CO are in 98.5, 48.0,20.5, 40.5μg/𝑚3 and 0.61mg/𝑚3in observed in 1 April to 31 April 2020 and PM10, PM2.5, NO2, Ozone and CO are in 138.0, 69.8, 20.5, 50.1μg/𝑚3 and 0.64mg/𝑚3in observed in 1May to 31 May 2020 . The mean value of PM10, PM2.5, NO2, Ozone and CO are in 256.0, 108.3, 27.1, 46.2 μg/𝑚3 and 0.82mg/𝑚3 in observed in 25 March to 31 March 2021 and PM10, PM2.5, NO2, Ozone and CO are in 212.5, 88.9, 29.0, 40.9 μg/𝑚3 and 0.82mg/𝑚3in observed in 1 April to 31 April 2021 and PM10, PM2.5, NO2, Ozone and CO are in 154.8, 66.5, 16.6, 32.5 μg/𝑚3 and 0.79mg/𝑚3in observed in 1 May to 31 May 2021.
Keywords: Ambient air quality, Residential area, air pollutent (PM10,PM2.5 ,NO2 , CO, Ozone ), Air quality index , Jodhpur city, etc.