Chennai vs Satna
Side-by-side air quality comparison between Chennai 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 | Chennai | Satna |
|---|---|---|
| PM2.5(µg/m³) | 16.60 | 30.30 |
| PM10(µg/m³) | 18.20 | 42.70 |
| NO₂(µg/m³) | 16.20 | 26.50 |
| SO₂(µg/m³) | 9.00 | 5.20 |
| O₃(µg/m³) | 57.00 | 28.00 |
| CO(µg/m³) | 350.00 | 289.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Satna averaged 66 — a 2-point (3%) gap, with Chennai the more polluted and Satna the cleaner of the two. On 2007 days when both cities reported, Satna was cleaner on 1436 of them; the average daily gap was 47 AQI points.
Seasonality & days
Chennai peaks in December, while Satna peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Satna was 0.2% Severe and 74.1% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Satna 146 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Satna has improved by 58 AQI points (46.8%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Satna hit AQI 500 at Bandhavgar Colony Satna (Cement) on 2018-05-27.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Satna spans 1 stations with a 0-point spread (min 85, max 85).
Verdict
🏆 Chennai has better air quality with an AQI of 28 compared to Satna's 51.