Mumbai vs Puducherry
Side-by-side air quality comparison between Mumbai and Puducherry.
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 | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 17.50 | 16.40 |
| PM10(µg/m³) | 40.70 | 19.20 |
| NO₂(µg/m³) | 11.00 | 18.50 |
| SO₂(µg/m³) | 12.60 | 8.80 |
| O₃(µg/m³) | 42.00 | 37.00 |
| CO(µg/m³) | 196.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mumbai averaged an AQI of 93 while Puducherry averaged 55 — a 38-point (69%) gap, with Mumbai the more polluted and Puducherry the cleaner of the two. On 1023 days when both cities reported, Puducherry was cleaner on 1019 of them; the average daily gap was 141 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; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Mumbai 58 days, Puducherry 117 days.
Year-over-year progress
Mumbai has improved by 4 AQI points (4.1%) from 2016 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Mumbai reached AQI 500 at Vile Parle West (MPCB) on 2022-08-15; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Mumbai spans 29 CPCB stations with a 74-point spread (min 77, max 151); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Puducherry has better air quality with an AQI of 27 compared to Mumbai's 41.