Karur vs Ooty
Side-by-side air quality comparison between Karur 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 | Karur | Ooty |
|---|---|---|
| PM2.5(µg/m³) | 3.80 | 4.40 |
| PM10(µg/m³) | 4.40 | 5.20 |
| NO₂(µg/m³) | 7.30 | 7.00 |
| SO₂(µg/m³) | 2.70 | 0.90 |
| O₃(µg/m³) | 37.00 | 31.00 |
| CO(µg/m³) | 117.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Ooty averaged 58 — a 13-point (22%) gap, with Karur the more polluted and Ooty the cleaner of the two. On 49 days when both cities reported, Ooty was cleaner on 26 of them; the average daily gap was 24 AQI points.
Seasonality & days
Karur peaks in December, while Ooty peaks in May. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Ooty was 0% Severe and 94.2% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Ooty 22 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Ooty hit AQI 164 at Bombay Castel (TNPCB) on 2024-12-17.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Ooty spans 1 stations with a 0-point spread (min 59, max 59).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Ooty's 7.