Mumbai vs Ratlam
Side-by-side air quality comparison between Mumbai and Ratlam.
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 | Mumbai | Ratlam |
|---|---|---|
| PM2.5(µg/m³) | 17.80 | 31.00 |
| PM10(µg/m³) | 42.60 | 47.60 |
| NO₂(µg/m³) | 10.10 | 8.60 |
| SO₂(µg/m³) | 10.60 | 15.80 |
| O₃(µg/m³) | 42.00 | 55.00 |
| CO(µg/m³) | 173.00 | 205.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Ratlam averaged 113 — a 20-point (22%) gap, with Ratlam the more polluted and Mumbai the cleaner of the two. On 1589 days when both cities reported, Ratlam was cleaner on 1312 of them; the average daily gap was 82 AQI points.
Seasonality & days
Mumbai peaks in December, while Ratlam peaks in November. Mumbai logged 0.5% Severe days and 34% Good-or-Satisfactory days; Ratlam was 0% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Ratlam 59 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Ratlam has improved by 19 AQI points (14.4%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Ratlam hit AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Ratlam spans 1 stations with a 0-point spread (min 103, max 103).
Verdict
🏆 Mumbai has better air quality with an AQI of 43 compared to Ratlam's 53.