Ambala vs Cuddalore
Side-by-side air quality comparison between Ambala and Cuddalore.
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 | Ambala | Cuddalore |
|---|---|---|
| PM2.5(µg/m³) | 44.90 | 15.00 |
| PM10(µg/m³) | 117.80 | 18.20 |
| NO₂(µg/m³) | 13.20 | 15.90 |
| SO₂(µg/m³) | 11.50 | 10.00 |
| O₃(µg/m³) | 100.00 | 39.00 |
| CO(µg/m³) | 547.00 | 353.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Cuddalore averaged 52 — a 42-point (81%) gap, with Ambala the more polluted and Cuddalore the cleaner of the two. On 289 days when both cities reported, Cuddalore was cleaner on 227 of them; the average daily gap was 50 AQI points.
Seasonality & days
Ambala peaks in November, while Cuddalore peaks in January. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Cuddalore was 0% Severe and 90.6% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Cuddalore 34 days.
Year-over-year progress
The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Cuddalore hit AQI 329 at Kudikadu (TNPCB) on 2024-04-05.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Cuddalore spans 2 stations with a 11-point spread (min 46, max 57).
Verdict
🏆 Cuddalore has better air quality with an AQI of 25 compared to Ambala's 113. That's a significant difference of 88 points.