Chennai vs Malegaon
Side-by-side air quality comparison between Chennai and Malegaon.
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 | Malegaon |
|---|---|---|
| PM2.5(µg/m³) | 16.60 | 13.60 |
| PM10(µg/m³) | 18.20 | 26.50 |
| NO₂(µg/m³) | 16.20 | 11.10 |
| SO₂(µg/m³) | 9.00 | 9.10 |
| O₃(µg/m³) | 57.00 | 27.00 |
| CO(µg/m³) | 350.00 | 121.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Malegaon averaged 114 — a 46-point (68%) gap, with Malegaon the more polluted and Chennai the cleaner of the two. On 355 days when both cities reported, Chennai was cleaner on 206 of them; the average daily gap was 43 AQI points.
Seasonality & days
Chennai peaks in December, while Malegaon peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Malegaon was 0% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Malegaon 51 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Malegaon has worsened by 16 AQI points (16.3%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Malegaon hit AQI 298 at Mahesh Nagar (MPCB) on 2024-07-07.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Malegaon spans 1 stations with a 0-point spread (min 109, max 109).
Verdict
🏆 Malegaon has better air quality with an AQI of 27 compared to Chennai's 28.