Bettiah vs Samastipur
Side-by-side air quality comparison between Bettiah 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 | Bettiah | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 105.00 | 118.70 |
| PM10(µg/m³) | 116.60 | 131.30 |
| NO₂(µg/m³) | 41.60 | 48.30 |
| SO₂(µg/m³) | 13.00 | 20.10 |
| O₃(µg/m³) | 55.00 | 57.00 |
| CO(µg/m³) | 1389.00 | 732.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Samastipur averaged 134 — a 7-point (6%) gap, with Samastipur the more polluted and Bettiah the cleaner of the two. On 550 days when both cities reported, Bettiah was cleaner on 281 of them; the average daily gap was 52 AQI points.
Seasonality & days
Bettiah peaks in November, while Samastipur peaks in January. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Samastipur 9 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Bettiah has better air quality with an AQI of 251 compared to Samastipur's 296.