Kolkata vs Maihar
Side-by-side air quality comparison between Kolkata and Maihar.
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 Maihar averaged 59 — a 42-point (71%) gap, with Kolkata the more polluted and Maihar the cleaner of the two. On 1224 days when both cities reported, Maihar was cleaner on 1118 of them; the average daily gap was 104 AQI points.
Seasonality & days
Kolkata peaks in January, while Maihar peaks in December. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Maihar was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Maihar 72 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Maihar has improved by 9 AQI points (13.2%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Maihar hit AQI 262 at Sahilara Maihar (Cements) on 2022-08-25.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Maihar spans 1 stations with a 0-point spread (min 56, max 56).