Sector 22 records AQI of 158 against 392 in 2023 and 395 in 2024; no monitoring station reports severe pollution this year; air quality returns to satisfactory category by 3am after a brief post-firecracker spike Sector 22 records AQI of 158 against 392 in 2023 and 395 in 2024; no monitoring station reports severe pollution this year; air quality returns to satisfactory category by 3am after a brief post-firecracker spike
