Hapur vs Tiruchirappalli
Side-by-side air quality comparison between Hapur 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 | Hapur | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 5.60 |
| PM10(µg/m³) | 96.40 | 6.40 |
| NO₂(µg/m³) | 27.40 | 6.80 |
| SO₂(µg/m³) | 11.00 | 3.40 |
| O₃(µg/m³) | 65.00 | 40.00 |
| CO(µg/m³) | 548.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hapur averaged an AQI of 142 while Tiruchirappalli averaged 50 — a 92-point (184%) gap, with Hapur the more polluted and Tiruchirappalli the cleaner of the two. On 86 days when both cities reported, Tiruchirappalli was cleaner on 83 of them; the average daily gap was 146 AQI points.
Seasonality & days
Hapur peaks in November, while Tiruchirappalli peaks in January. Hapur logged 1.9% Severe days and 36.2% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Hapur 55 days, Tiruchirappalli 46 days.
Year-over-year progress
Hapur has improved by 197 AQI points (58.1%) from 2018 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Hapur reached AQI 477 at Anand Vihar (UPPCB) on 2019-10-31; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Hapur spans 1 CPCB stations with a 0-point spread (min 159, max 159); 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 Hapur's 133. That's a significant difference of 124 points.