Kannur vs Virudhunagar
Side-by-side air quality comparison between Kannur 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, Kannur averaged an AQI of 65 while Virudhunagar averaged 52 — a 13-point (25%) gap, with Kannur the more polluted and Virudhunagar the cleaner of the two. On 99 days when both cities reported, Virudhunagar was cleaner on 56 of them; the average daily gap was 22 AQI points.
Seasonality & days
Kannur peaks in February, while Virudhunagar peaks in November. Kannur logged 0% Severe days and 92% Good-or-Satisfactory days; Virudhunagar was 0% Severe and 92.3% Good-or-Satisfactory. Longest clean-air streaks: Kannur 103 days, Virudhunagar 31 days.
Year-over-year progress
The worst recorded day for Kannur reached AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14; Virudhunagar hit AQI 173 at Collectorate Office (TNPCB) on 2024-11-07.
Station-level disparity
Kannur spans 1 CPCB stations with a 0-point spread (min 66, max 66); Virudhunagar spans 1 stations with a 0-point spread (min 52, max 52).