Jaipur, Aug. 2 -- Central air quality data regarding the state displays a gradual improvement in 2025 over the preceding two year, with city-wise data logging a spike in clean air days in certain districts. An analysis of city-wise Air Quality Index (AQI) data for Rajasthan, annexed to a reply by the Union Ministry of Environment, Forest and Climate Change in the Lok Sabha, shows that the average number of "good days" per city increased from 12.1 days in 2023 to 28.4 days in 2024, before rising further to 29.5 days in 2025. Simultaneously, the average number of "bad days",classified under Poor, Very Poor and Severe AQI categories-dropped from 42 days in 2023 to 26.2 days in 2025, with a temporary spike to 45.2 days in 2024. Union environment minister Bhupender Yadav's Lok Sabha constituency Bhiwadi remained the fourth most polluted city in the country in 2025. Bharatpur district logged the most good AQI days in the state. Bhiwadi recorded 110 bad air days in 2025. Although the number has dropped from 125 days in 2023, it is still over four times the state average of 26.2 bad days. After Bhiwadi, Sri Ganganagar recorded the second-highest number of bad air quality days in 2025 at 85, followed by Bikaner and Churu, with 58 days each, and Sikar with 52 days. In these districts, residents continued to experience prolonged periods of poor air quality, raising concerns about long-term health impacts, particularly for children, the elderly and people with respiratory illnesses. At the other end of the spectrum, Bharatpur recorded the highest number of good air quality days in 2025 with 70, followed by Chittorgarh (64), Karauli (60), Sirohi (59) and Dungarpur (57). These districts emerged as Rajasthan's cleanest performers during the year. The data also reflects improvements in other cities. Hanumangarh brought them down from 102 to 39 over the same period. Bikaner also cut bad AQI days from 100 to 58 "With support from the Centre, the state is implementing multiple welfare and pollution-control initiatives to improve air quality. Various departments were involved, and these efforts have led to an improvement in the AQI across many cities,"said Rajasthan State Pollution Control Board member secretary Kapil Chandrawal....