Ghaziabad vs Kalyān
Side-by-side air quality comparison between Ghaziabad 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Ghaziabad | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 23.70 |
| PM10(µg/m³) | 96.40 | 40.90 |
| NO₂(µg/m³) | 27.40 | 20.60 |
| SO₂(µg/m³) | 11.00 | 23.00 |
| O₃(µg/m³) | 65.00 | 23.00 |
| CO(µg/m³) | 542.00 | 186.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ghaziabad averaged an AQI of 177 while Kalyān averaged 95 — a 82-point (86%) gap, with Ghaziabad the more polluted and Kalyān the cleaner of the two. On 1414 days when both cities reported, Kalyān was cleaner on 1292 of them; the average daily gap was 129 AQI points.
Seasonality & days
Ghaziabad peaks in November, while Kalyān peaks in January. Ghaziabad logged 12.2% Severe days and 13.700000000000001% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Ghaziabad 19 days, Kalyān 78 days.
Year-over-year progress
Ghaziabad has improved by 115 AQI points (39.4%) from 2017 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Ghaziabad reached AQI 500 at Vasundhara (UPPCB) on 2017-12-21; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Ghaziabad spans 4 CPCB stations with a 30-point spread (min 198, max 228); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).
Verdict
🏆 Kalyān has better air quality with an AQI of 41 compared to Ghaziabad's 133. That's a significant difference of 92 points.