Firozabad vs Perundurai
Side-by-side air quality comparison between Firozabad and Perundurai.
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 | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 59.50 | 5.70 |
| PM10(µg/m³) | 211.90 | 6.80 |
| NO₂(µg/m³) | 7.10 | 6.30 |
| SO₂(µg/m³) | 9.20 | 3.60 |
| O₃(µg/m³) | 139.00 | 50.00 |
| CO(µg/m³) | 414.00 | 190.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Firozabad averaged an AQI of 73 while Perundurai averaged 75 — a 2-point (3%) gap, with Perundurai the more polluted and Firozabad the cleaner of the two. On 57 days when both cities reported, Perundurai was cleaner on 43 of them; the average daily gap was 45 AQI points.
Seasonality & days
Firozabad peaks in January, while Perundurai peaks in November. Firozabad logged 0.6% Severe days and 56.6% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Firozabad 68 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Firozabad reached AQI 489 at Nagla Bhau (UPPCB) on 2021-11-09; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Firozabad spans 2 CPCB stations with a 19-point spread (min 88, max 107); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 10 compared to Firozabad's 175. That's a significant difference of 165 points.