Karur vs Kolār
Side-by-side air quality comparison between Karur 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 | Karur | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 3.80 | 5.90 |
| PM10(µg/m³) | 4.40 | 7.20 |
| NO₂(µg/m³) | 7.30 | 10.90 |
| SO₂(µg/m³) | 2.70 | 4.70 |
| O₃(µg/m³) | 37.00 | 35.00 |
| CO(µg/m³) | 117.00 | 189.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Kolār averaged 65 — a 6-point (9%) gap, with Karur the more polluted and Kolār the cleaner of the two. On 48 days when both cities reported, Kolār was cleaner on 35 of them; the average daily gap was 31 AQI points.
Seasonality & days
Karur peaks in December, while Kolār peaks in September. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Kolār 17 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Kolār's 10.