Chandigarh vs Tumkur
Side-by-side air quality comparison between Chandigarh and Tumkur.
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 | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 50.90 | 3.70 |
| PM10(µg/m³) | 66.80 | 4.60 |
| NO₂(µg/m³) | 44.60 | 7.70 |
| SO₂(µg/m³) | 8.10 | 1.50 |
| O₃(µg/m³) | 11.00 | 32.00 |
| CO(µg/m³) | 714.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Tumkur averaged 88 — a 65-point (74%) gap, with Chandigarh the more polluted and Tumkur the cleaner of the two. On 539 days when both cities reported, Tumkur was cleaner on 425 of them; the average daily gap was 87 AQI points.
Seasonality & days
Chandigarh peaks in January, while Tumkur peaks in December. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Tumkur 20 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Chandigarh's 85. That's a significant difference of 79 points.