Chandigarh vs Kalyān
Side-by-side air quality comparison between Chandigarh and Kalyān.
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 | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 50.90 | 22.10 |
| PM10(µg/m³) | 66.80 | 40.40 |
| NO₂(µg/m³) | 44.60 | 23.10 |
| SO₂(µg/m³) | 8.10 | 21.70 |
| O₃(µg/m³) | 11.00 | 19.00 |
| CO(µg/m³) | 714.00 | 174.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Kalyān averaged 95 — a 58-point (61%) gap, with Chandigarh the more polluted and Kalyān the cleaner of the two. On 1354 days when both cities reported, Kalyān was cleaner on 793 of them; the average daily gap was 66 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Kalyān 78 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).
Verdict
🏆 Kalyān has better air quality with an AQI of 40 compared to Chandigarh's 85.