Bettiah vs Tiruchirappalli
Side-by-side air quality comparison between Bettiah 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 | Bettiah | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 105.00 | 5.60 |
| PM10(µg/m³) | 116.60 | 6.40 |
| NO₂(µg/m³) | 41.60 | 6.80 |
| SO₂(µg/m³) | 13.00 | 3.40 |
| O₃(µg/m³) | 55.00 | 40.00 |
| CO(µg/m³) | 1389.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Tiruchirappalli averaged 50 — a 77-point (154%) gap, with Bettiah the more polluted and Tiruchirappalli the cleaner of the two. On 66 days when both cities reported, Tiruchirappalli was cleaner on 62 of them; the average daily gap was 84 AQI points.
Seasonality & days
Bettiah peaks in November, while Tiruchirappalli peaks in January. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Tiruchirappalli 46 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); 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 Bettiah's 251. That's a significant difference of 242 points.