Chandigarh vs Kolār
Side-by-side air quality comparison between Chandigarh and Kolār.
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 | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 46.30 | 5.10 |
| PM10(µg/m³) | 63.60 | 6.20 |
| NO₂(µg/m³) | 30.10 | 8.80 |
| SO₂(µg/m³) | 10.30 | 4.30 |
| O₃(µg/m³) | 64.00 | 34.00 |
| CO(µg/m³) | 602.00 | 183.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Kolār averaged 65 — a 88-point (135%) gap, with Chandigarh the more polluted and Kolār the cleaner of the two. On 1028 days when both cities reported, Kolār was cleaner on 886 of them; the average daily gap was 82 AQI points.
Seasonality & days
Chandigarh peaks in January, while Kolār peaks in September. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Kolār 17 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Kolār has better air quality with an AQI of 9 compared to Chandigarh's 78. That's a significant difference of 69 points.