Kolkata vs Meerut
Side-by-side air quality comparison between Kolkata and Meerut.
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 Meerut averaged 144 — a 43-point (43%) gap, with Meerut the more polluted and Kolkata the cleaner of the two. On 1568 days when both cities reported, Kolkata was cleaner on 1081 of them; the average daily gap was 80 AQI points.
Seasonality & days
Kolkata peaks in January, while Meerut peaks in November. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Meerut was 2% Severe and 22.299999999999997% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Meerut 25 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Meerut has improved by 116 AQI points (44.6%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Meerut hit AQI 490 at Pallavpuram Phase 2 (UPPCB) on 2020-11-05.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Meerut spans 3 stations with a 13-point spread (min 172, max 185).