Mumbai vs Patna
Side-by-side air quality comparison between Mumbai and Patna.
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 | Patna |
|---|---|---|
| PM2.5(µg/m³) | 17.80 | 99.00 |
| PM10(µg/m³) | 42.60 | 111.80 |
| NO₂(µg/m³) | 10.10 | 49.30 |
| SO₂(µg/m³) | 10.60 | 18.10 |
| O₃(µg/m³) | 42.00 | 19.00 |
| CO(µg/m³) | 173.00 | 704.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Patna averaged 172 — a 79-point (85%) gap, with Patna the more polluted and Mumbai the cleaner of the two. On 2384 days when both cities reported, Mumbai was cleaner on 1770 of them; the average daily gap was 89 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Mumbai logged 0.5% Severe days and 34% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Patna 30 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Patna has improved by 40 AQI points (18.9%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Patna spans 6 stations with a 39-point spread (min 154, max 193).
Verdict
🏆 Mumbai has better air quality with an AQI of 43 compared to Patna's 231. That's a significant difference of 188 points.