Bihar Sharif vs Chapra
Side-by-side air quality comparison between Bihar Sharif and Chapra.
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 | Bihar Sharif | Chapra |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 102.90 |
| PM10(µg/m³) | 79.40 | 117.10 |
| NO₂(µg/m³) | 27.20 | 42.70 |
| SO₂(µg/m³) | 14.60 | 15.30 |
| O₃(µg/m³) | 64.00 | 46.00 |
| CO(µg/m³) | 543.00 | 805.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Chapra averaged 149 — a 34-point (30%) gap, with Chapra the more polluted and Bihar Sharif the cleaner of the two. On 773 days when both cities reported, Bihar Sharif was cleaner on 565 of them; the average daily gap was 74 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Chapra peaks in January. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Chapra was 2.4% Severe and 26.8% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Chapra 14 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Chapra has improved by 181 AQI points (54.8%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Chapra hit AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Chapra spans 1 stations with a 0-point spread (min 195, max 195).
Verdict
🏆 Bihar Sharif has better air quality with an AQI of 140 compared to Chapra's 244. That's a significant difference of 104 points.