Ariyalur vs Thane
Side-by-side air quality comparison between Ariyalur and Thane.
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 | Thane |
|---|---|---|
| PM2.5(µg/m³) | 4.20 | 20.90 |
| PM10(µg/m³) | 4.90 | 39.90 |
| NO₂(µg/m³) | 2.50 | 4.80 |
| SO₂(µg/m³) | 8.20 | 10.50 |
| O₃(µg/m³) | 89.00 | 96.00 |
| CO(µg/m³) | 137.00 | 167.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Thane averaged 95 — a 49-point (107%) gap, with Thane the more polluted and Ariyalur the cleaner of the two. On 298 days when both cities reported, Ariyalur was cleaner on 269 of them; the average daily gap was 62 AQI points.
Seasonality & days
Ariyalur peaks in March, while Thane peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Thane was 0% Severe and 53.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Thane 99 days.
Year-over-year progress
The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Thane hit AQI 302 at Kasarvadavali (MPCB) on 2024-03-21.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Thane spans 2 stations with a 9-point spread (min 90, max 99).
Verdict
🏆 Ariyalur has better air quality with an AQI of 7 compared to Thane's 40.