Delhi vs Ludhiana
Side-by-side air quality comparison between Delhi 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 | Delhi | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 80.80 | 71.50 |
| PM10(µg/m³) | 143.90 | 100.40 |
| NO₂(µg/m³) | 41.80 | 31.30 |
| SO₂(µg/m³) | 33.00 | 17.00 |
| O₃(µg/m³) | 63.00 | 62.00 |
| CO(µg/m³) | 568.00 | 748.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Ludhiana averaged 117 — a 93-point (79%) gap, with Delhi the more polluted and Ludhiana the cleaner of the two. On 1533 days when both cities reported, Ludhiana was cleaner on 1517 of them; the average daily gap was 182 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Ludhiana 53 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Ludhiana has better air quality with an AQI of 139 compared to Delhi's 170.