Ariyalur vs Pimpri-Chinchwad
Side-by-side air quality comparison between Ariyalur and Pimpri-Chinchwad.
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 | Pimpri-Chinchwad |
|---|---|---|
| PM2.5(µg/m³) | 4.20 | 18.50 |
| PM10(µg/m³) | 4.90 | 42.40 |
| NO₂(µg/m³) | 2.50 | 1.20 |
| SO₂(µg/m³) | 8.20 | 4.60 |
| O₃(µg/m³) | 89.00 | 104.00 |
| CO(µg/m³) | 137.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Pimpri-Chinchwad averaged 114 — a 68-point (148%) gap, with Pimpri-Chinchwad the more polluted and Ariyalur the cleaner of the two. On 303 days when both cities reported, Ariyalur was cleaner on 272 of them; the average daily gap was 85 AQI points.
Seasonality & days
Ariyalur peaks in March, while Pimpri-Chinchwad peaks in November. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Pimpri-Chinchwad was 0% Severe and 42% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Pimpri-Chinchwad 82 days.
Year-over-year progress
The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Pimpri-Chinchwad hit AQI 341 at Thergaon Pimpri (MPCB) on 2024-11-23.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Pimpri-Chinchwad spans 4 stations with a 20-point spread (min 107, max 127).
Verdict
🏆 Ariyalur has better air quality with an AQI of 7 compared to Pimpri-Chinchwad's 42.