Samastipur vs Satna
Side-by-side air quality comparison between Samastipur and Satna.
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 | Samastipur | Satna |
|---|---|---|
| PM2.5(µg/m³) | 118.70 | 31.00 |
| PM10(µg/m³) | 131.30 | 47.80 |
| NO₂(µg/m³) | 48.30 | 18.60 |
| SO₂(µg/m³) | 20.10 | 7.00 |
| O₃(µg/m³) | 57.00 | 55.00 |
| CO(µg/m³) | 732.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Samastipur averaged an AQI of 134 while Satna averaged 66 — a 68-point (103%) gap, with Samastipur the more polluted and Satna the cleaner of the two. On 743 days when both cities reported, Satna was cleaner on 657 of them; the average daily gap was 107 AQI points.
Seasonality & days
Samastipur peaks in January, while Satna peaks in November. Samastipur logged 1.4% Severe days and 23.400000000000002% Good-or-Satisfactory days; Satna was 0.2% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Samastipur 9 days, Satna 146 days.
Year-over-year progress
Samastipur has improved by 84 AQI points (38.5%) from 2022 to 2024; Satna has improved by 58 AQI points (46.8%) over the same window. The worst recorded day for Samastipur reached AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01; Satna hit AQI 500 at Bandhavgar Colony Satna (Cement) on 2018-05-27.
Station-level disparity
Samastipur spans 1 CPCB stations with a 0-point spread (min 177, max 177); Satna spans 1 stations with a 0-point spread (min 85, max 85).
Verdict
🏆 Satna has better air quality with an AQI of 53 compared to Samastipur's 296. That's a significant difference of 243 points.