Karur vs Virudhunagar
Side-by-side air quality comparison between Karur and Virudhunagar.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Virudhunagar averaged 52 — a 19-point (37%) gap, with Karur the more polluted and Virudhunagar the cleaner of the two. On 58 days when both cities reported, Virudhunagar was cleaner on 38 of them; the average daily gap was 20 AQI points.
Seasonality & days
Karur peaks in December, while Virudhunagar peaks in November. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Virudhunagar was 0% Severe and 92.3% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Virudhunagar 31 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Virudhunagar hit AQI 173 at Collectorate Office (TNPCB) on 2024-11-07.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Virudhunagar spans 1 stations with a 0-point spread (min 52, max 52).