Meerut vs Tiruchirappalli
Side-by-side air quality comparison between Meerut 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Meerut | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 71.20 | 5.40 |
| PM10(µg/m³) | 96.40 | 6.60 |
| NO₂(µg/m³) | 33.50 | 7.20 |
| SO₂(µg/m³) | 11.10 | 3.10 |
| O₃(µg/m³) | 42.00 | 38.00 |
| CO(µg/m³) | 606.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Meerut averaged an AQI of 144 while Tiruchirappalli averaged 50 — a 94-point (188%) gap, with Meerut the more polluted and Tiruchirappalli the cleaner of the two. On 82 days when both cities reported, Tiruchirappalli was cleaner on 82 of them; the average daily gap was 170 AQI points.
Seasonality & days
Meerut peaks in November, while Tiruchirappalli peaks in January. Meerut logged 2% Severe days and 22.299999999999997% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Meerut 25 days, Tiruchirappalli 46 days.
Year-over-year progress
Meerut has improved by 116 AQI points (44.6%) from 2019 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Meerut reached AQI 490 at Pallavpuram Phase 2 (UPPCB) on 2020-11-05; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Meerut spans 3 CPCB stations with a 13-point spread (min 172, max 185); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 9 compared to Meerut's 138. That's a significant difference of 129 points.