Ariyalur vs Ludhiana
Side-by-side air quality comparison between Ariyalur and Ludhiana.
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 | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 71.50 |
| PM10(µg/m³) | 8.30 | 100.40 |
| NO₂(µg/m³) | 7.50 | 31.30 |
| SO₂(µg/m³) | 6.50 | 17.00 |
| O₃(µg/m³) | 43.00 | 62.00 |
| CO(µg/m³) | 133.00 | 748.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Ludhiana averaged 117 — a 71-point (154%) gap, with Ludhiana the more polluted and Ariyalur the cleaner of the two.
Seasonality & days
Ariyalur peaks in March, while Ludhiana peaks in November. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Ludhiana 53 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Ariyalur has better air quality with an AQI of 11 compared to Ludhiana's 139. That's a significant difference of 128 points.