Kalyān vs Prayagraj
Side-by-side air quality comparison between Kalyān and Prayagraj.
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 | Kalyān | Prayagraj |
|---|---|---|
| PM2.5(µg/m³) | 23.70 | 61.00 |
| PM10(µg/m³) | 40.90 | 73.80 |
| NO₂(µg/m³) | 20.60 | 45.90 |
| SO₂(µg/m³) | 23.00 | 15.60 |
| O₃(µg/m³) | 23.00 | 36.00 |
| CO(µg/m³) | 186.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kalyān averaged an AQI of 95 while Prayagraj averaged 80 — a 15-point (19%) gap, with Kalyān the more polluted and Prayagraj the cleaner of the two. On 821 days when both cities reported, Kalyān was cleaner on 408 of them; the average daily gap was 47 AQI points.
Seasonality & days
Kalyān peaks in January, while Prayagraj peaks in November. Kalyān logged 0.1% Severe days and 46.4% Good-or-Satisfactory days; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Kalyān 78 days, Prayagraj 69 days.
Year-over-year progress
Kalyān has improved by 4 AQI points (4%) from 2019 to 2024; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Kalyān reached AQI 414 at Khadakpada (MPCB) on 2022-01-24; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Kalyān spans 2 CPCB stations with a 18-point spread (min 98, max 116); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).
Verdict
🏆 Kalyān has better air quality with an AQI of 41 compared to Prayagraj's 104. That's a significant difference of 63 points.