Charkhi Dādri vs Ludhiana
Side-by-side air quality comparison between Charkhi Dādri and Ludhiana.
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 | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 47.10 | 42.00 |
| PM10(µg/m³) | 227.20 | 72.60 |
| NO₂(µg/m³) | 0.70 | 2.20 |
| SO₂(µg/m³) | 4.50 | 11.60 |
| O₃(µg/m³) | 145.00 | 197.00 |
| CO(µg/m³) | 238.00 | 351.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Charkhi Dādri averaged an AQI of 145 while Ludhiana averaged 117 — a 28-point (24%) gap, with Charkhi Dādri the more polluted and Ludhiana the cleaner of the two. On 459 days when both cities reported, Ludhiana was cleaner on 371 of them; the average daily gap was 70 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Charkhi Dādri logged 0.7% Severe days and 28% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Charkhi Dādri 48 days, Ludhiana 53 days.
Year-over-year progress
Charkhi Dādri has improved by 51 AQI points (26%) from 2020 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Charkhi Dādri reached AQI 470 at Mini Secretariat Charkhi (HSPCB) on 2021-11-12; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Charkhi Dādri spans 1 CPCB stations with a 0-point spread (min 162, max 162); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Ludhiana has better air quality with an AQI of 73 compared to Charkhi Dādri's 185. That's a significant difference of 112 points.