Ooty vs Perundurai
Side-by-side air quality comparison between Ooty and Perundurai.
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 | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 4.40 | 6.80 |
| PM10(µg/m³) | 5.20 | 8.00 |
| NO₂(µg/m³) | 7.00 | 11.30 |
| SO₂(µg/m³) | 0.90 | 3.20 |
| O₃(µg/m³) | 31.00 | 32.00 |
| CO(µg/m³) | 124.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ooty averaged an AQI of 58 while Perundurai averaged 75 — a 17-point (29%) gap, with Perundurai the more polluted and Ooty the cleaner of the two. On 33 days when both cities reported, Ooty was cleaner on 20 of them; the average daily gap was 34 AQI points.
Seasonality & days
Ooty peaks in May, while Perundurai peaks in November. Ooty logged 0% Severe days and 94.2% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Ooty 22 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Ooty reached AQI 164 at Bombay Castel (TNPCB) on 2024-12-17; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Ooty spans 1 CPCB stations with a 0-point spread (min 59, max 59); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Ooty has better air quality with an AQI of 7 compared to Perundurai's 11.