Tiruchirappalli vs Ulhasnagar
Side-by-side air quality comparison between Tiruchirappalli and Ulhasnagar.
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 Ulhasnagar averaged 117 — a 67-point (134%) gap, with Ulhasnagar the more polluted and Tiruchirappalli the cleaner of the two. On 85 days when both cities reported, Tiruchirappalli was cleaner on 85 of them; the average daily gap was 98 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Tiruchirappalli logged 0% Severe days and 96.5% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Tiruchirappalli 46 days, Ulhasnagar 74 days.
Year-over-year progress
Tiruchirappalli has improved by 23 AQI points (31.5%) from 2023 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Tiruchirappalli reached AQI 114 at St Joseph College (TNPCB) on 2024-01-14; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Tiruchirappalli spans 1 CPCB stations with a 0-point spread (min 52, max 52); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).