Cuddalore vs Kolār
Side-by-side air quality comparison between Cuddalore and Kolār.
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 | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 13.40 | 5.80 |
| PM10(µg/m³) | 15.40 | 10.80 |
| NO₂(µg/m³) | 6.10 | 1.40 |
| SO₂(µg/m³) | 21.40 | 2.00 |
| O₃(µg/m³) | 122.00 | 86.00 |
| CO(µg/m³) | 139.00 | 137.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Kolār averaged 65 — a 13-point (25%) gap, with Kolār the more polluted and Cuddalore the cleaner of the two. On 217 days when both cities reported, Cuddalore was cleaner on 146 of them; the average daily gap was 27 AQI points.
Seasonality & days
Cuddalore peaks in January, while Kolār peaks in September. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Kolār 17 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Kolār has better air quality with an AQI of 11 compared to Cuddalore's 22.