Kolkata vs Mira-Bhayandar
Side-by-side air quality comparison between Kolkata and Mira-Bhayandar.
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 Mira-Bhayandar averaged 102 — a 1-point (1%) gap, with Mira-Bhayandar the more polluted and Kolkata the cleaner of the two. On 336 days when both cities reported, Mira-Bhayandar was cleaner on 233 of them; the average daily gap was 48 AQI points.
Seasonality & days
Kolkata peaks in January, while Mira-Bhayandar peaks in November. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Mira-Bhayandar was 0% Severe and 51.2% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Mira-Bhayandar 41 days.
Year-over-year progress
The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Mira-Bhayandar hit AQI 284 at Bhayandar West (MPCB) on 2024-11-23.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Mira-Bhayandar spans 1 stations with a 0-point spread (min 102, max 102).