Cuddalore vs Katni
Side-by-side air quality comparison between Cuddalore and Katni.
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 | Cuddalore | Katni |
|---|---|---|
| PM2.5(µg/m³) | 15.00 | 30.30 |
| PM10(µg/m³) | 18.20 | 46.10 |
| NO₂(µg/m³) | 15.90 | 9.10 |
| SO₂(µg/m³) | 10.00 | 5.30 |
| O₃(µg/m³) | 39.00 | 76.00 |
| CO(µg/m³) | 353.00 | 191.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Katni averaged 105 — a 53-point (102%) gap, with Katni the more polluted and Cuddalore the cleaner of the two. On 303 days when both cities reported, Cuddalore was cleaner on 270 of them; the average daily gap was 52 AQI points.
Seasonality & days
Cuddalore peaks in January, while Katni peaks in November. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Katni was 0% Severe and 39.3% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Katni 62 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Katni hit AQI 350 at Gole Bazar (MPPCB) on 2019-11-01.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Katni spans 1 stations with a 0-point spread (min 137, max 137).
Verdict
🏆 Cuddalore has better air quality with an AQI of 25 compared to Katni's 51.