Cuddalore vs Firozabad
Side-by-side air quality comparison between Cuddalore and Firozabad.
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 | Firozabad |
|---|---|---|
| PM2.5(µg/m³) | 14.60 | 29.99 |
| PM10(µg/m³) | 16.50 | 72.20 |
| NO₂(µg/m³) | 6.50 | 6.47 |
| SO₂(µg/m³) | 20.20 | 2.59 |
| O₃(µg/m³) | 134.00 | 0.48 |
| CO(µg/m³) | 140.00 | 681.14 |
| NH3(ppb) | — | 13.07 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Firozabad averaged 73 — a 21-point (40%) gap, with Firozabad the more polluted and Cuddalore the cleaner of the two. On 310 days when both cities reported, Cuddalore was cleaner on 220 of them; the average daily gap was 39 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Firozabad was 0.6% Severe and 56.6% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Firozabad 68 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Firozabad hit AQI 489 at Nagla Bhau (UPPCB) on 2021-11-09.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Firozabad spans 2 stations with a 19-point spread (min 88, max 107).
Verdict
🏆 Cuddalore has better air quality with an AQI of 24 compared to Firozabad's 73.