Kolkata vs Rajgir
Side-by-side air quality comparison between Kolkata and Rajgir.
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 Rajgir averaged 124 — a 23-point (23%) gap, with Rajgir the more polluted and Kolkata the cleaner of the two. On 574 days when both cities reported, Rajgir was cleaner on 325 of them; the average daily gap was 49 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Rajgir was 0.6% Severe and 37.9% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Rajgir 26 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Rajgir has improved by 158 AQI points (56%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Rajgir hit AQI 461 at Dangi Tola (BSPCB) on 2022-12-31.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Rajgir spans 1 stations with a 0-point spread (min 154, max 154).