Charkhi Dādri vs Kalyān
Side-by-side air quality comparison between Charkhi Dādri 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 | Charkhi Dādri | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 67.80 | 23.70 |
| PM10(µg/m³) | 219.30 | 40.90 |
| NO₂(µg/m³) | 11.50 | 20.60 |
| SO₂(µg/m³) | 9.90 | 23.00 |
| O₃(µg/m³) | 99.00 | 23.00 |
| CO(µg/m³) | 416.00 | 186.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Charkhi Dādri averaged an AQI of 145 while Kalyān averaged 95 — a 50-point (53%) gap, with Charkhi Dādri the more polluted and Kalyān the cleaner of the two. On 1015 days when both cities reported, Kalyān was cleaner on 704 of them; the average daily gap was 73 AQI points.
Seasonality & days
Charkhi Dādri peaks in November, while Kalyān peaks in January. Charkhi Dādri logged 0.7% Severe days and 28% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Charkhi Dādri 48 days, Kalyān 78 days.
Year-over-year progress
Charkhi Dādri has improved by 51 AQI points (26%) from 2020 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Charkhi Dādri reached AQI 470 at Mini Secretariat Charkhi (HSPCB) on 2021-11-12; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Charkhi Dādri spans 1 CPCB stations with a 0-point spread (min 162, max 162); 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 Charkhi Dādri's 180. That's a significant difference of 139 points.