Karur vs Thane
Side-by-side air quality comparison between Karur and Thane.
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 | Thane |
|---|---|---|
| PM2.5(µg/m³) | 3.80 | 17.80 |
| PM10(µg/m³) | 4.40 | 42.60 |
| NO₂(µg/m³) | 7.30 | 10.10 |
| SO₂(µg/m³) | 2.70 | 10.60 |
| O₃(µg/m³) | 37.00 | 42.00 |
| CO(µg/m³) | 117.00 | 162.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Thane averaged 95 — a 24-point (34%) gap, with Thane the more polluted and Karur the cleaner of the two. On 71 days when both cities reported, Karur was cleaner on 67 of them; the average daily gap was 70 AQI points.
Seasonality & days
Karur peaks in December, while Thane peaks in January. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Thane was 0% Severe and 53.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Thane 99 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Thane hit AQI 302 at Kasarvadavali (MPCB) on 2024-03-21.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Thane spans 2 stations with a 9-point spread (min 90, max 99).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Thane's 43.