Bhagalpur vs Patna
Side-by-side air quality comparison between Bhagalpur and Patna.
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 | Patna |
|---|---|---|
| PM2.5(µg/m³) | 56.20 | 97.80 |
| PM10(µg/m³) | 62.60 | 109.40 |
| NO₂(µg/m³) | 14.10 | 40.50 |
| SO₂(µg/m³) | 24.00 | 18.90 |
| O₃(µg/m³) | 121.00 | 52.00 |
| CO(µg/m³) | 527.00 | 667.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhagalpur averaged an AQI of 164 while Patna averaged 172 — a 8-point (5%) gap, with Patna the more polluted and Bhagalpur the cleaner of the two. On 1100 days when both cities reported, Bhagalpur was cleaner on 912 of them; the average daily gap was 68 AQI points.
Seasonality & days
Bhagalpur peaks in January, while Patna peaks in December. Bhagalpur logged 1.9% Severe days and 19.9% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Bhagalpur 20 days, Patna 30 days.
Year-over-year progress
Bhagalpur has improved by 123 AQI points (42.9%) from 2021 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Bhagalpur reached AQI 451 at Mayaganj (BSPCB) on 2022-12-30; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Bhagalpur spans 2 CPCB stations with a 26-point spread (min 170, max 196); Patna spans 6 stations with a 39-point spread (min 154, max 193).
Verdict
🏆 Bhagalpur has better air quality with an AQI of 94 compared to Patna's 227. That's a significant difference of 133 points.