Darbhanga vs Tiruchirappalli
Side-by-side air quality comparison between Darbhanga 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 | Darbhanga | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 111.50 | 5.60 |
| PM10(µg/m³) | 122.90 | 6.40 |
| NO₂(µg/m³) | 42.70 | 6.80 |
| SO₂(µg/m³) | 18.40 | 3.40 |
| O₃(µg/m³) | 61.00 | 40.00 |
| CO(µg/m³) | 767.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2023, Darbhanga averaged an AQI of 365 while Tiruchirappalli averaged 50 — a 315-point (630%) gap, with Darbhanga the more polluted and Tiruchirappalli the cleaner of the two.
Seasonality & days
Darbhanga peaks in December, while Tiruchirappalli peaks in January. Darbhanga logged 7.1% Severe days and 26.9% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Darbhanga 20 days, Tiruchirappalli 46 days.
Year-over-year progress
Darbhanga has worsened by 116 AQI points (46.6%) from 2021 to 2023; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Darbhanga reached AQI 473 at Town Hall Lal Bagh (BSPCB) on 2023-01-01; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Darbhanga spans 1 CPCB stations with a 0-point spread (min 208, max 208); 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 Darbhanga's 272. That's a significant difference of 263 points.