Delhi vs Mumbai
Side-by-side air quality comparison between Delhi and Mumbai.
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, Delhi averaged an AQI of 210 while Mumbai averaged 93 — a 117-point (126%) gap, with Delhi the more polluted and Mumbai the cleaner of the two. On 2662 days when both cities reported, Mumbai was cleaner on 2509 of them; the average daily gap was 152 AQI points.
Seasonality & days
Delhi peaks in November, while Mumbai peaks in December. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Mumbai 58 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).