Bihar Sharif vs Guwahati
Side-by-side air quality comparison between Bihar Sharif and Guwahati.
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 | Guwahati |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 31.90 |
| PM10(µg/m³) | 79.40 | 36.00 |
| NO₂(µg/m³) | 27.20 | 5.40 |
| SO₂(µg/m³) | 14.60 | 4.20 |
| O₃(µg/m³) | 64.00 | 97.00 |
| CO(µg/m³) | 543.00 | 393.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Guwahati averaged 123 — a 8-point (7%) gap, with Guwahati the more polluted and Bihar Sharif the cleaner of the two. On 899 days when both cities reported, Bihar Sharif was cleaner on 472 of them; the average daily gap was 82 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Guwahati peaks in January. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Guwahati 105 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Guwahati spans 4 stations with a 26-point spread (min 118, max 144).
Verdict
🏆 Guwahati has better air quality with an AQI of 54 compared to Bihar Sharif's 140. That's a significant difference of 86 points.