Katihar vs Satna
Side-by-side air quality comparison between Katihar 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 | Katihar | Satna |
|---|---|---|
| PM2.5(µg/m³) | 109.20 | 30.60 |
| PM10(µg/m³) | 114.30 | 44.10 |
| NO₂(µg/m³) | 31.10 | 24.20 |
| SO₂(µg/m³) | 18.30 | 5.90 |
| O₃(µg/m³) | 43.00 | 35.00 |
| CO(µg/m³) | 770.00 | 262.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Katihar averaged an AQI of 123 while Satna averaged 66 — a 57-point (86%) gap, with Katihar the more polluted and Satna the cleaner of the two. On 916 days when both cities reported, Satna was cleaner on 777 of them; the average daily gap was 115 AQI points.
Seasonality & days
Katihar peaks in December, while Satna peaks in November. Katihar logged 3.1% Severe days and 26.9% Good-or-Satisfactory days; Satna was 0.2% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Katihar 19 days, Satna 146 days.
Year-over-year progress
Katihar has improved by 188 AQI points (60.5%) from 2021 to 2024; Satna has improved by 58 AQI points (46.8%) over the same window. The worst recorded day for Katihar reached AQI 465 at Mirchaibari (BSPCB) on 2023-01-23; Satna hit AQI 500 at Bandhavgar Colony Satna (Cement) on 2018-05-27.
Station-level disparity
Katihar spans 1 CPCB stations with a 0-point spread (min 185, max 185); Satna spans 1 stations with a 0-point spread (min 85, max 85).
Verdict
🏆 Satna has better air quality with an AQI of 52 compared to Katihar's 264. That's a significant difference of 212 points.