• Ashwani Gupta
• Dr. Anand Kumar

The study was carried out during the 2023 to see the status of air quality of Lucknow city by monitoring and assessment of some selected air pollutants namely Respirable Particulate Matter (PM₁₀), Sulphur dioxide (SO₂), Nitrogen dioxide (NO₂) levels, and also AQI of urban Lucknow at 5 representative air pollution monitoring sites located at different locations categories as two residential (Mahanager and Aliganj), two commercial (Hazratganj and Ansal T.C.) and one industrial (Talkatora) areas. The results revealed the 24 hours concentration of PM₁₀ in the range of 115.58 to 231.87µg/m³ with an average of 171.26µg/m³. The average values of PM₁₀ irrespective of locations were found to be over permissible limit (PM₁₀ = 100 µg/m³) prescribed by NAAQ and WHO guidelines. Similarly, 24 hours average concentration of SO₂ and NO₂ were found in the range of 6.19 to 11.28µg/m³ and 15.18 to 43.82µg/m³ with an average concentration of 8.41µg/m³ and 24.52µg/m³ respectively and all the values were below the permissible limits (80µg/m³). The 24 hours AQI was recorded in the range of 98 to 187 with an average 141 which was graded unhealthy to severe by NAAQ and WHO throughout the year. The seasonal variations in PM₁₀, SO₂ and NO₂ were noticed and found to be maximum 223.65µg/m³, 10.96µg/m³ and 36.02µg/m³ respectively, in winter and minimum 111.50µg/m³, 6.83µg/m³ and 17.14µg/m³ respectively, in monsoon season. Similarly seasonal variations in AQI were recorded. It was reported maximum in 182.87 in winter (November - February) and minimum 111 in monsoon (July - October) season.

Keywords: PM₁₀, SO₂, NO₂, Ambient Air Quality (AQI), Lucknow city.

"Assessment of Air Quality Status of Lucknow City of Year - 2023", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 5, page no.f58-f70, May-2024, Available :http://www.jetir.org/papers/JETIR2405507.pdf

"Assessment of Air Quality Status of Lucknow City of Year - 2023", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 5, page no. ppf58-f70, May-2024, Available at : http://www.jetir.org/papers/JETIR2405507.pdf