Hajipur vs Kalyān
Side-by-side air quality comparison between Hajipur and Kalyān.
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, Hajipur averaged an AQI of 173 while Kalyān averaged 95 — a 78-point (82%) gap, with Hajipur the more polluted and Kalyān the cleaner of the two. On 1071 days when both cities reported, Kalyān was cleaner on 742 of them; the average daily gap was 62 AQI points.
Seasonality & days
Hajipur peaks in December, while Kalyān peaks in January. Hajipur logged 0.3% Severe days and 36.6% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Hajipur 36 days, Kalyān 78 days.
Year-over-year progress
Hajipur has worsened by 74 AQI points (74.7%) from 2020 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Hajipur reached AQI 427 at Industrial Area (BSPCB) on 2024-11-12; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Hajipur spans 1 CPCB stations with a 0-point spread (min 149, max 149); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).