Purnia vs Satna
Side-by-side air quality comparison between Purnia 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 | Purnia | Satna |
|---|---|---|
| PM2.5(µg/m³) | 105.90 | 31.00 |
| PM10(µg/m³) | 109.00 | 47.80 |
| NO₂(µg/m³) | 25.20 | 18.60 |
| SO₂(µg/m³) | 20.10 | 7.00 |
| O₃(µg/m³) | 67.00 | 55.00 |
| CO(µg/m³) | 707.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Purnia averaged an AQI of 133 while Satna averaged 66 — a 67-point (102%) gap, with Purnia the more polluted and Satna the cleaner of the two. On 832 days when both cities reported, Satna was cleaner on 707 of them; the average daily gap was 108 AQI points.
Seasonality & days
Purnia peaks in January, while Satna peaks in November. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Satna was 0.2% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Satna 146 days.
Year-over-year progress
Purnia has improved by 163 AQI points (55.1%) from 2021 to 2024; Satna has improved by 58 AQI points (46.8%) over the same window. The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Satna hit AQI 500 at Bandhavgar Colony Satna (Cement) on 2018-05-27.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); 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 Purnia's 253. That's a significant difference of 200 points.