Firozabad vs Kalyān
Side-by-side air quality comparison between Firozabad and Kalyān.
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 | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 61.00 | 22.10 |
| PM10(µg/m³) | 158.30 | 40.40 |
| NO₂(µg/m³) | 28.10 | 23.10 |
| SO₂(µg/m³) | 7.90 | 21.70 |
| O₃(µg/m³) | 44.00 | 19.00 |
| CO(µg/m³) | 514.00 | 174.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Firozabad averaged an AQI of 73 while Kalyān averaged 95 — a 22-point (30%) gap, with Kalyān the more polluted and Firozabad the cleaner of the two. On 762 days when both cities reported, Firozabad was cleaner on 447 of them; the average daily gap was 52 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Firozabad logged 0.6% Severe days and 56.6% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Firozabad 68 days, Kalyān 78 days.
Year-over-year progress
Firozabad has improved by 70 AQI points (49%) from 2021 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Firozabad reached AQI 489 at Nagla Bhau (UPPCB) on 2021-11-09; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Firozabad spans 2 CPCB stations with a 19-point spread (min 88, max 107); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).
Verdict
🏆 Kalyān has better air quality with an AQI of 40 compared to Firozabad's 139. That's a significant difference of 99 points.