Ooty vs Patna
Side-by-side air quality comparison between Ooty and Patna.
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 | Ooty | Patna |
|---|---|---|
| PM2.5(µg/m³) | 4.90 | 97.80 |
| PM10(µg/m³) | 5.30 | 109.40 |
| NO₂(µg/m³) | 5.70 | 40.50 |
| SO₂(µg/m³) | 0.90 | 18.90 |
| O₃(µg/m³) | 38.00 | 52.00 |
| CO(µg/m³) | 132.00 | 667.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ooty averaged an AQI of 58 while Patna averaged 172 — a 114-point (197%) gap, with Patna the more polluted and Ooty the cleaner of the two. On 607 days when both cities reported, Ooty was cleaner on 600 of them; the average daily gap was 197 AQI points.
Seasonality & days
Ooty peaks in May, while Patna peaks in December. Ooty logged 0% Severe days and 94.2% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Ooty 22 days, Patna 30 days.
Year-over-year progress
Ooty is essentially flat from 2022 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Ooty reached AQI 164 at Bombay Castel (TNPCB) on 2024-12-17; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Ooty spans 1 CPCB stations with a 0-point spread (min 59, max 59); Patna spans 6 stations with a 39-point spread (min 154, max 193).
Verdict
🏆 Ooty has better air quality with an AQI of 8 compared to Patna's 227. That's a significant difference of 219 points.