Kolkata vs Shivamogga
Side-by-side air quality comparison between Kolkata and Shivamogga.
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 Shivamogga averaged 55 — a 46-point (84%) gap, with Kolkata the more polluted and Shivamogga the cleaner of the two. On 1162 days when both cities reported, Shivamogga was cleaner on 1112 of them; the average daily gap was 102 AQI points.
Seasonality & days
Kolkata peaks in January, while Shivamogga peaks in February. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Shivamogga was 0% Severe and 97.5% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Shivamogga 233 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Shivamogga has improved by 16 AQI points (22.5%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Shivamogga hit AQI 202 at Vinoba Nagara (KSPCB) on 2021-08-04.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Shivamogga spans 1 stations with a 0-point spread (min 56, max 56).