Dindigul vs Ludhiana
Side-by-side air quality comparison between Dindigul 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 | Dindigul | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 20.10 | 81.70 |
| PM10(µg/m³) | 21.60 | 109.20 |
| NO₂(µg/m³) | 20.20 | 40.40 |
| SO₂(µg/m³) | 3.40 | 15.20 |
| O₃(µg/m³) | 23.00 | 35.00 |
| CO(µg/m³) | 209.00 | 797.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Ludhiana averaged 117 — a 56-point (92%) gap, with Ludhiana the more polluted and Dindigul the cleaner of the two.
Seasonality & days
Dindigul peaks in February, while Ludhiana peaks in November. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Ludhiana 53 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Dindigul has better air quality with an AQI of 34 compared to Ludhiana's 173. That's a significant difference of 139 points.