Gaya vs Samastipur
Side-by-side air quality comparison between Gaya 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 | Gaya | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 61.20 | 118.70 |
| PM10(µg/m³) | 73.80 | 131.30 |
| NO₂(µg/m³) | 16.60 | 48.30 |
| SO₂(µg/m³) | 13.20 | 20.10 |
| O₃(µg/m³) | 86.00 | 57.00 |
| CO(µg/m³) | 309.00 | 732.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gaya averaged an AQI of 110 while Samastipur averaged 134 — a 24-point (22%) gap, with Samastipur the more polluted and Gaya the cleaner of the two. On 788 days when both cities reported, Gaya was cleaner on 409 of them; the average daily gap was 54 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Gaya logged 1.7% Severe days and 32% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Gaya 52 days, Samastipur 9 days.
Year-over-year progress
Gaya has improved by 89 AQI points (44.7%) from 2016 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Gaya reached AQI 500 at Collectorate (BSPCB) on 2016-10-15; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Gaya spans 3 CPCB stations with a 85-point spread (min 88, max 173); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Gaya has better air quality with an AQI of 105 compared to Samastipur's 296. That's a significant difference of 191 points.