Cuddalore vs Ghaziabad
Side-by-side air quality comparison between Cuddalore and Ghaziabad.
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 | Ghaziabad |
|---|---|---|
| PM2.5(µg/m³) | 15.00 | 69.60 |
| PM10(µg/m³) | 18.20 | 96.40 |
| NO₂(µg/m³) | 15.90 | 27.40 |
| SO₂(µg/m³) | 10.00 | 11.00 |
| O₃(µg/m³) | 39.00 | 65.00 |
| CO(µg/m³) | 353.00 | 542.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Ghaziabad averaged 177 — a 125-point (240%) gap, with Ghaziabad the more polluted and Cuddalore the cleaner of the two. On 319 days when both cities reported, Cuddalore was cleaner on 310 of them; the average daily gap was 148 AQI points.
Seasonality & days
Cuddalore peaks in January, while Ghaziabad peaks in November. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Ghaziabad was 12.2% Severe and 13.700000000000001% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Ghaziabad 19 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Ghaziabad hit AQI 500 at Vasundhara (UPPCB) on 2017-12-21.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Ghaziabad spans 4 stations with a 30-point spread (min 198, max 228).
Verdict
🏆 Cuddalore has better air quality with an AQI of 25 compared to Ghaziabad's 133. That's a significant difference of 108 points.