Bettiah vs Bihar Sharif
Side-by-side air quality comparison between Bettiah and Bihar Sharif.
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 | Bihar Sharif |
|---|---|---|
| PM2.5(µg/m³) | 105.00 | 71.90 |
| PM10(µg/m³) | 116.60 | 79.40 |
| NO₂(µg/m³) | 41.60 | 27.20 |
| SO₂(µg/m³) | 13.00 | 14.60 |
| O₃(µg/m³) | 55.00 | 64.00 |
| CO(µg/m³) | 1389.00 | 543.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Bihar Sharif averaged 115 — a 12-point (10%) gap, with Bettiah the more polluted and Bihar Sharif the cleaner of the two. On 639 days when both cities reported, Bihar Sharif was cleaner on 395 of them; the average daily gap was 70 AQI points.
Seasonality & days
Bettiah peaks in November, while Bihar Sharif peaks in December. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Bihar Sharif was 1% Severe and 39.1% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Bihar Sharif 32 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Bihar Sharif has improved by 138 AQI points (54.5%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Bihar Sharif hit AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Bihar Sharif spans 1 stations with a 0-point spread (min 146, max 146).
Verdict
🏆 Bihar Sharif has better air quality with an AQI of 140 compared to Bettiah's 251. That's a significant difference of 111 points.