Cuddalore vs Ludhiana
Side-by-side air quality comparison between Cuddalore 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 | Cuddalore | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 15.00 | 71.50 |
| PM10(µg/m³) | 18.20 | 100.40 |
| NO₂(µg/m³) | 15.90 | 31.30 |
| SO₂(µg/m³) | 10.00 | 17.00 |
| O₃(µg/m³) | 39.00 | 62.00 |
| CO(µg/m³) | 353.00 | 748.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Ludhiana averaged 117 — a 65-point (125%) gap, with Ludhiana the more polluted and Cuddalore the cleaner of the two.
Seasonality & days
Cuddalore peaks in January, while Ludhiana peaks in November. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Ludhiana 53 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Cuddalore has better air quality with an AQI of 25 compared to Ludhiana's 139. That's a significant difference of 114 points.