Ooty vs Virudhunagar
Side-by-side air quality comparison between Ooty and Virudhunagar.
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 | Virudhunagar |
|---|---|---|
| PM2.5(µg/m³) | 4.90 | 5.30 |
| PM10(µg/m³) | 5.30 | 6.10 |
| NO₂(µg/m³) | 5.70 | 6.70 |
| SO₂(µg/m³) | 0.90 | 3.00 |
| O₃(µg/m³) | 38.00 | 35.00 |
| CO(µg/m³) | 132.00 | 129.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ooty averaged an AQI of 58 while Virudhunagar averaged 52 — a 6-point (12%) gap, with Ooty the more polluted and Virudhunagar the cleaner of the two. On 124 days when both cities reported, Virudhunagar was cleaner on 69 of them; the average daily gap was 28 AQI points.
Seasonality & days
Ooty peaks in May, while Virudhunagar peaks in November. Ooty logged 0% Severe days and 94.2% Good-or-Satisfactory days; Virudhunagar was 0% Severe and 92.3% Good-or-Satisfactory. Longest clean-air streaks: Ooty 22 days, Virudhunagar 31 days.
Year-over-year progress
The worst recorded day for Ooty reached AQI 164 at Bombay Castel (TNPCB) on 2024-12-17; Virudhunagar hit AQI 173 at Collectorate Office (TNPCB) on 2024-11-07.
Station-level disparity
Ooty spans 1 CPCB stations with a 0-point spread (min 59, max 59); Virudhunagar spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Ooty has better air quality with an AQI of 8 compared to Virudhunagar's 9.