Mumbai vs Siliguri
Side-by-side air quality comparison between Mumbai and Siliguri.
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 | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 17.50 | 77.80 |
| PM10(µg/m³) | 40.70 | 98.30 |
| NO₂(µg/m³) | 11.00 | 11.30 |
| SO₂(µg/m³) | 12.60 | 6.80 |
| O₃(µg/m³) | 42.00 | 115.00 |
| CO(µg/m³) | 196.00 | 523.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Siliguri averaged 81 — a 12-point (15%) gap, with Mumbai the more polluted and Siliguri the cleaner of the two. On 1847 days when both cities reported, Siliguri was cleaner on 1499 of them; the average daily gap was 83 AQI points.
Seasonality & days
Mumbai peaks in December, while Siliguri peaks in February. Mumbai logged 0.5% Severe days and 34% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Siliguri 180 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Mumbai has better air quality with an AQI of 41 compared to Siliguri's 160. That's a significant difference of 119 points.