Mumbai vs Ulhasnagar
Side-by-side air quality comparison between Mumbai and Ulhasnagar.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Ulhasnagar averaged 117 — a 24-point (26%) gap, with Ulhasnagar the more polluted and Mumbai the cleaner of the two. On 353 days when both cities reported, Ulhasnagar was cleaner on 312 of them; the average daily gap was 63 AQI points.
Seasonality & days
Mumbai peaks in December, while Ulhasnagar peaks in January. Mumbai logged 0.5% Severe days and 34% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Ulhasnagar 74 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).