Guwahati vs Mumbai
Side-by-side air quality comparison between Guwahati 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Guwahati | Mumbai |
|---|---|---|
| PM2.5(µg/m³) | 31.90 | 17.50 |
| PM10(µg/m³) | 36.00 | 40.70 |
| NO₂(µg/m³) | 5.40 | 11.00 |
| SO₂(µg/m³) | 4.20 | 12.60 |
| O₃(µg/m³) | 97.00 | 42.00 |
| CO(µg/m³) | 393.00 | 196.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Mumbai averaged 93 — a 30-point (32%) gap, with Guwahati the more polluted and Mumbai the cleaner of the two. On 1747 days when both cities reported, Guwahati was cleaner on 1308 of them; the average daily gap was 74 AQI points.
Seasonality & days
Guwahati peaks in January, while Mumbai peaks in December. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Mumbai 58 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).
Verdict
🏆 Mumbai has better air quality with an AQI of 41 compared to Guwahati's 54.