Kishanganj vs Kolkata
Side-by-side air quality comparison between Kishanganj 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, Kishanganj averaged an AQI of 144 while Kolkata averaged 101 — a 43-point (43%) gap, with Kishanganj the more polluted and Kolkata the cleaner of the two. On 623 days when both cities reported, Kishanganj was cleaner on 323 of them; the average daily gap was 49 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kishanganj logged 0.2% Severe days and 37.099999999999994% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Kishanganj 23 days, Kolkata 75 days.
Year-over-year progress
Kishanganj has improved by 136 AQI points (48.6%) from 2021 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Kishanganj reached AQI 417 at SDM Office Khagra (BSPCB) on 2022-02-01; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Kishanganj spans 1 CPCB stations with a 0-point spread (min 156, max 156); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).