Bhagalpur vs Samastipur
Side-by-side air quality comparison between Bhagalpur and Samastipur.
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 | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 56.20 | 118.70 |
| PM10(µg/m³) | 62.60 | 131.30 |
| NO₂(µg/m³) | 14.10 | 48.30 |
| SO₂(µg/m³) | 24.00 | 20.10 |
| O₃(µg/m³) | 121.00 | 57.00 |
| CO(µg/m³) | 527.00 | 732.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhagalpur averaged an AQI of 164 while Samastipur averaged 134 — a 30-point (22%) gap, with Bhagalpur the more polluted and Samastipur the cleaner of the two. On 772 days when both cities reported, Samastipur was cleaner on 402 of them; the average daily gap was 54 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; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Bhagalpur 20 days, Samastipur 9 days.
Year-over-year progress
Bhagalpur has improved by 123 AQI points (42.9%) from 2021 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Bhagalpur reached AQI 451 at Mayaganj (BSPCB) on 2022-12-30; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Bhagalpur spans 2 CPCB stations with a 26-point spread (min 170, max 196); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Bhagalpur has better air quality with an AQI of 94 compared to Samastipur's 296. That's a significant difference of 202 points.