Dewās vs Ooty
Side-by-side air quality comparison between Dewās 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 | Dewās | Ooty |
|---|---|---|
| PM2.5(µg/m³) | 31.30 | 4.90 |
| PM10(µg/m³) | 47.80 | 5.30 |
| NO₂(µg/m³) | 7.10 | 5.70 |
| SO₂(µg/m³) | 15.10 | 0.90 |
| O₃(µg/m³) | 66.00 | 38.00 |
| CO(µg/m³) | 208.00 | 132.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dewās averaged an AQI of 98 while Ooty averaged 58 — a 40-point (69%) gap, with Dewās the more polluted and Ooty the cleaner of the two. On 550 days when both cities reported, Ooty was cleaner on 466 of them; the average daily gap was 52 AQI points.
Seasonality & days
Dewās peaks in December, while Ooty peaks in May. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Ooty was 0% Severe and 94.2% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Ooty 22 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Ooty is essentially flat over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Ooty hit AQI 164 at Bombay Castel (TNPCB) on 2024-12-17.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Ooty spans 1 stations with a 0-point spread (min 59, max 59).
Verdict
🏆 Ooty has better air quality with an AQI of 8 compared to Dewās's 53.