Guwahati vs Tiruchirappalli
Side-by-side air quality comparison between Guwahati 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, Guwahati averaged an AQI of 123 while Tiruchirappalli averaged 50 — a 73-point (146%) gap, with Guwahati the more polluted and Tiruchirappalli the cleaner of the two. On 88 days when both cities reported, Tiruchirappalli was cleaner on 88 of them; the average daily gap was 119 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Tiruchirappalli 46 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).