Bettiah vs Howrah
Side-by-side air quality comparison between Bettiah and Howrah.
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 | Howrah |
|---|---|---|
| PM2.5(µg/m³) | 105.00 | 64.70 |
| PM10(µg/m³) | 116.60 | 69.40 |
| NO₂(µg/m³) | 41.60 | 18.10 |
| SO₂(µg/m³) | 13.00 | 13.10 |
| O₃(µg/m³) | 55.00 | 86.00 |
| CO(µg/m³) | 1389.00 | 421.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Howrah averaged 126 — a 1-point (1%) gap, with Bettiah the more polluted and Howrah the cleaner of the two. On 527 days when both cities reported, Bettiah was cleaner on 266 of them; the average daily gap was 77 AQI points.
Seasonality & days
Bettiah peaks in November, while Howrah peaks in December. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Howrah 120 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Howrah has improved by 32 AQI points (20.3%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Howrah spans 5 stations with a 116-point spread (min 111, max 227).
Verdict
🏆 Howrah has better air quality with an AQI of 117 compared to Bettiah's 251. That's a significant difference of 134 points.