Kolkata vs Koppal
Side-by-side air quality comparison between Kolkata and Koppal.
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, Kolkata averaged an AQI of 101 while Koppal averaged 65 — a 36-point (55%) gap, with Kolkata the more polluted and Koppal the cleaner of the two. On 909 days when both cities reported, Koppal was cleaner on 764 of them; the average daily gap was 93 AQI points.
Seasonality & days
Kolkata peaks in January, while Koppal peaks in February. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Koppal was 0% Severe and 85.5% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Koppal 47 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Koppal has improved by 31 AQI points (32.3%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Koppal hit AQI 384 at Diwator Nagar (KSPCB) on 2023-02-16.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Koppal spans 1 stations with a 0-point spread (min 70, max 70).