Ariyalur vs Mumbai
Side-by-side air quality comparison between Ariyalur 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 | Ariyalur | Mumbai |
|---|---|---|
| PM2.5(µg/m³) | 6.90 | 17.60 |
| PM10(µg/m³) | 8.80 | 41.60 |
| NO₂(µg/m³) | 8.10 | 10.60 |
| SO₂(µg/m³) | 5.20 | 11.40 |
| O₃(µg/m³) | 41.00 | 42.00 |
| CO(µg/m³) | 133.00 | 176.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Mumbai averaged 93 — a 47-point (102%) gap, with Mumbai the more polluted and Ariyalur the cleaner of the two. On 314 days when both cities reported, Ariyalur was cleaner on 311 of them; the average daily gap was 128 AQI points.
Seasonality & days
Ariyalur peaks in March, while Mumbai peaks in December. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Mumbai 58 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).
Verdict
🏆 Ariyalur has better air quality with an AQI of 12 compared to Mumbai's 42.