Coimbatore vs Tirunelveli
Side-by-side air quality comparison between Coimbatore and Tirunelveli.
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, Coimbatore averaged an AQI of 66 while Tirunelveli averaged 30 — a 36-point (120%) gap, with Coimbatore the more polluted and Tirunelveli the cleaner of the two. On 114 days when both cities reported, Tirunelveli was cleaner on 108 of them; the average daily gap was 48 AQI points.
Seasonality & days
Coimbatore peaks in November, while Tirunelveli peaks in October. Coimbatore logged 0% Severe days and 90.5% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Coimbatore 32 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Coimbatore reached AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Coimbatore spans 2 CPCB stations with a 1-point spread (min 63, max 64); Tirunelveli spans 1 stations with a 0-point spread (min 30, max 30).