Kanpur vs Kolkata
Side-by-side air quality comparison between Kanpur 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, Kanpur averaged an AQI of 109 while Kolkata averaged 101 — a 8-point (8%) gap, with Kanpur the more polluted and Kolkata the cleaner of the two. On 2016 days when both cities reported, Kolkata was cleaner on 1090 of them; the average daily gap was 57 AQI points.
Seasonality & days
Kanpur peaks in November, while Kolkata peaks in January. Kanpur logged 3.8% Severe days and 36.2% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Kanpur 70 days, Kolkata 75 days.
Year-over-year progress
Kanpur has improved by 96 AQI points (46.8%) from 2016 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Kanpur reached AQI 482 at Nehru Nagar (UPPCB) on 2017-12-29; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Kanpur spans 4 CPCB stations with a 54-point spread (min 111, max 165); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).