Firozabad vs Gummidipoondi
Side-by-side air quality comparison between Firozabad and Gummidipoondi.
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 | Firozabad | Gummidipoondi |
|---|---|---|
| PM2.5(µg/m³) | 61.00 | 10.60 |
| PM10(µg/m³) | 158.30 | 11.90 |
| NO₂(µg/m³) | 28.10 | 12.70 |
| SO₂(µg/m³) | 7.90 | 6.00 |
| O₃(µg/m³) | 44.00 | 51.00 |
| CO(µg/m³) | 514.00 | 298.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Firozabad averaged an AQI of 73 while Gummidipoondi averaged 107 — a 34-point (47%) gap, with Gummidipoondi the more polluted and Firozabad the cleaner of the two. On 590 days when both cities reported, Firozabad was cleaner on 309 of them; the average daily gap was 62 AQI points.
Seasonality & days
Firozabad peaks in January, while Gummidipoondi peaks in November. Firozabad logged 0.6% Severe days and 56.6% Good-or-Satisfactory days; Gummidipoondi was 0% Severe and 59.1% Good-or-Satisfactory. Longest clean-air streaks: Firozabad 68 days, Gummidipoondi 49 days.
Year-over-year progress
Firozabad has improved by 70 AQI points (49%) from 2021 to 2024; Gummidipoondi has worsened by 8 AQI points (8.1%) over the same window. The worst recorded day for Firozabad reached AQI 489 at Nagla Bhau (UPPCB) on 2021-11-09; Gummidipoondi hit AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22.
Station-level disparity
Firozabad spans 2 CPCB stations with a 19-point spread (min 88, max 107); Gummidipoondi spans 1 stations with a 0-point spread (min 99, max 99).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 18 compared to Firozabad's 139. That's a significant difference of 121 points.