Karur vs Silchar
Side-by-side air quality comparison between Karur and Silchar.
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 | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 3.80 | 53.00 |
| PM10(µg/m³) | 4.40 | 63.80 |
| NO₂(µg/m³) | 7.30 | 13.90 |
| SO₂(µg/m³) | 2.70 | 7.50 |
| O₃(µg/m³) | 37.00 | 95.00 |
| CO(µg/m³) | 117.00 | 276.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Silchar averaged 52 — a 19-point (37%) gap, with Karur the more polluted and Silchar the cleaner of the two. On 70 days when both cities reported, Silchar was cleaner on 44 of them; the average daily gap was 26 AQI points.
Seasonality & days
Karur peaks in December, while Silchar peaks in February. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Silchar 87 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Silchar's 89. That's a significant difference of 83 points.