Bhagalpur vs Guwahati
Side-by-side air quality comparison between Bhagalpur 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 | Bhagalpur | Guwahati |
|---|---|---|
| PM2.5(µg/m³) | 56.60 | 35.50 |
| PM10(µg/m³) | 78.20 | 41.80 |
| NO₂(µg/m³) | 0.90 | 1.20 |
| SO₂(µg/m³) | 10.80 | 4.90 |
| O₃(µg/m³) | 191.00 | 150.00 |
| CO(µg/m³) | 264.00 | 359.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhagalpur averaged an AQI of 164 while Guwahati averaged 123 — a 41-point (33%) gap, with Bhagalpur the more polluted and Guwahati the cleaner of the two. On 1094 days when both cities reported, Guwahati was cleaner on 794 of them; the average daily gap was 75 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Bhagalpur logged 1.9% Severe days and 19.9% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Bhagalpur 20 days, Guwahati 105 days.
Year-over-year progress
Bhagalpur has improved by 123 AQI points (42.9%) from 2021 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Bhagalpur reached AQI 451 at Mayaganj (BSPCB) on 2022-12-30; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Bhagalpur spans 2 CPCB stations with a 26-point spread (min 170, max 196); Guwahati spans 4 stations with a 26-point spread (min 118, max 144).
Verdict
🏆 Guwahati has better air quality with an AQI of 60 compared to Bhagalpur's 94.