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Charkhi Dādri vs Ludhiana

Side-by-side air quality comparison between Charkhi Dādri and Ludhiana.

Cleaner right now: Ludhiana (112-pt gap)Historical head-to-head: Ludhiana cleaner 371/459 daysYoY 20202024: Charkhi Dādri -26% · Ludhiana -40.3%

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

Charkhi Dādri

Haryana, India

Moderate

PM2.5: 47.1 µg/m³

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VS
🏆 Cleaner

Ludhiana

Punjab, India

Satisfactory

PM2.5: 42.0 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantCharkhi DādriLudhiana
PM2.5(µg/m³)47.1042.00
PM10(µg/m³)227.2072.60
NO₂(µg/m³)0.702.20
SO₂(µg/m³)4.5011.60
O₃(µg/m³)145.00197.00
CO(µg/m³)238.00351.00

CPCB Multi-Year History (2016–2024)

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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.

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