Chandigarh vs Prayagraj
Side-by-side air quality comparison between Chandigarh and Prayagraj.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Chandigarh | Prayagraj |
|---|---|---|
| PM2.5(µg/m³) | 49.00 | 76.80 |
| PM10(µg/m³) | 64.70 | 93.80 |
| NO₂(µg/m³) | 40.20 | 59.00 |
| SO₂(µg/m³) | 8.40 | 16.00 |
| O₃(µg/m³) | 23.00 | 8.00 |
| CO(µg/m³) | 678.00 | 252.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Prayagraj averaged 80 — a 73-point (91%) gap, with Chandigarh the more polluted and Prayagraj the cleaner of the two. On 936 days when both cities reported, Prayagraj was cleaner on 689 of them; the average daily gap was 72 AQI points.
Seasonality & days
Chandigarh peaks in January, while Prayagraj peaks in November. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Prayagraj 69 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).
Verdict
🏆 Chandigarh has better air quality with an AQI of 82 compared to Prayagraj's 156. That's a significant difference of 74 points.