Tiruchirappalli vs Vellore
Side-by-side air quality comparison between Tiruchirappalli and Vellore.
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, Tiruchirappalli averaged an AQI of 50 while Vellore averaged 61 — a 11-point (22%) gap, with Vellore the more polluted and Tiruchirappalli the cleaner of the two. On 55 days when both cities reported, Tiruchirappalli was cleaner on 52 of them; the average daily gap was 30 AQI points.
Seasonality & days
Tiruchirappalli peaks in January, while Vellore peaks in December. Tiruchirappalli logged 0% Severe days and 96.5% Good-or-Satisfactory days; Vellore was 0% Severe and 83.5% Good-or-Satisfactory. Longest clean-air streaks: Tiruchirappalli 46 days, Vellore 23 days.
Year-over-year progress
Tiruchirappalli has improved by 23 AQI points (31.5%) from 2023 to 2024; Vellore has improved by 10 AQI points (14.1%) over the same window. The worst recorded day for Tiruchirappalli reached AQI 114 at St Joseph College (TNPCB) on 2024-01-14; Vellore hit AQI 245 at Vasanthapuram (TNPCB) on 2024-01-14.
Station-level disparity
Tiruchirappalli spans 1 CPCB stations with a 0-point spread (min 52, max 52); Vellore spans 1 stations with a 0-point spread (min 70, max 70).