Chandigarh vs Ooty
Side-by-side air quality comparison between Chandigarh and Ooty.
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 | Ooty |
|---|---|---|
| PM2.5(µg/m³) | 49.00 | 4.40 |
| PM10(µg/m³) | 64.70 | 5.00 |
| NO₂(µg/m³) | 40.20 | 7.00 |
| SO₂(µg/m³) | 8.40 | 0.90 |
| O₃(µg/m³) | 23.00 | 32.00 |
| CO(µg/m³) | 678.00 | 130.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Ooty averaged 58 — a 95-point (164%) gap, with Chandigarh the more polluted and Ooty the cleaner of the two. On 607 days when both cities reported, Ooty was cleaner on 588 of them; the average daily gap was 116 AQI points.
Seasonality & days
Chandigarh peaks in January, while Ooty peaks in May. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Ooty was 0% Severe and 94.2% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Ooty 22 days.
Year-over-year progress
Chandigarh has worsened by 27 AQI points (21.4%) from 2019 to 2024; Ooty is essentially flat over the same window. The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Ooty hit AQI 164 at Bombay Castel (TNPCB) on 2024-12-17.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Ooty spans 1 stations with a 0-point spread (min 59, max 59).
Verdict
🏆 Ooty has better air quality with an AQI of 7 compared to Chandigarh's 82. That's a significant difference of 75 points.