Gummidipoondi vs Ludhiana
Side-by-side air quality comparison between Gummidipoondi 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 | Gummidipoondi | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 10.50 | 71.50 |
| PM10(µg/m³) | 12.00 | 100.40 |
| NO₂(µg/m³) | 11.90 | 31.30 |
| SO₂(µg/m³) | 6.80 | 17.00 |
| O₃(µg/m³) | 52.00 | 62.00 |
| CO(µg/m³) | 286.00 | 748.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Ludhiana averaged 117 — a 10-point (9%) gap, with Ludhiana the more polluted and Gummidipoondi the cleaner of the two. On 187 days when both cities reported, Ludhiana was cleaner on 102 of them; the average daily gap was 42 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Ludhiana 53 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 18 compared to Ludhiana's 139. That's a significant difference of 121 points.