Ariyalur vs Tiruchirappalli
Side-by-side air quality comparison between Ariyalur and Tiruchirappalli.
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, Ariyalur averaged an AQI of 46 while Tiruchirappalli averaged 50 — a 4-point (9%) gap, with Tiruchirappalli the more polluted and Ariyalur the cleaner of the two. On 60 days when both cities reported, Ariyalur was cleaner on 34 of them; the average daily gap was 12 AQI points.
Seasonality & days
Ariyalur peaks in March, while Tiruchirappalli peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Tiruchirappalli 46 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).