Firozabad vs Kolkata
Side-by-side air quality comparison between Firozabad and Kolkata.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Firozabad averaged an AQI of 73 while Kolkata averaged 101 — a 28-point (38%) gap, with Kolkata the more polluted and Firozabad the cleaner of the two. On 862 days when both cities reported, Firozabad was cleaner on 555 of them; the average daily gap was 70 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; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Firozabad 68 days, Kolkata 75 days.
Year-over-year progress
Firozabad has improved by 70 AQI points (49%) from 2021 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Firozabad reached AQI 489 at Nagla Bhau (UPPCB) on 2021-11-09; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Firozabad spans 2 CPCB stations with a 19-point spread (min 88, max 107); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).