Hapur vs Kalyān
Side-by-side air quality comparison between Hapur 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, Hapur averaged an AQI of 142 while Kalyān averaged 95 — a 47-point (49%) gap, with Hapur the more polluted and Kalyān the cleaner of the two. On 1250 days when both cities reported, Kalyān was cleaner on 815 of them; the average daily gap was 71 AQI points.
Seasonality & days
Hapur peaks in November, while Kalyān peaks in January. Hapur logged 1.9% Severe days and 36.2% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Hapur 55 days, Kalyān 78 days.
Year-over-year progress
Hapur has improved by 197 AQI points (58.1%) from 2018 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Hapur reached AQI 477 at Anand Vihar (UPPCB) on 2019-10-31; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Hapur spans 1 CPCB stations with a 0-point spread (min 159, max 159); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).