Karur vs Raipur
Side-by-side air quality comparison between Karur and Raipur.
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 | Raipur |
|---|---|---|
| PM2.5(µg/m³) | 2.30 | 30.70 |
| PM10(µg/m³) | 2.90 | 41.40 |
| NO₂(µg/m³) | 1.20 | 4.80 |
| SO₂(µg/m³) | 1.30 | 28.40 |
| O₃(µg/m³) | 81.00 | 155.00 |
| CO(µg/m³) | 120.00 | 211.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Raipur averaged 74 — a 3-point (4%) gap, with Raipur the more polluted and Karur the cleaner of the two. On 71 days when both cities reported, Karur was cleaner on 66 of them; the average daily gap was 56 AQI points.
Seasonality & days
Karur peaks in December, while Raipur peaks in November. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Raipur was 0% Severe and 54.3% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Raipur 70 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Raipur hit AQI 226 at AIIMS (CECB) on 2023-12-26.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Raipur spans 4 stations with a 42-point spread (min 63, max 105).
Verdict
🏆 Karur has better air quality with an AQI of 4 compared to Raipur's 52.