Gangtok vs Ludhiana
Side-by-side air quality comparison between Gangtok 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 | Gangtok | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 30.30 | 43.20 |
| PM10(µg/m³) | 38.60 | 65.90 |
| NO₂(µg/m³) | 1.10 | 2.70 |
| SO₂(µg/m³) | 2.70 | 11.00 |
| O₃(µg/m³) | 150.00 | 188.00 |
| CO(µg/m³) | 264.00 | 342.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Ludhiana averaged 117 — a 69-point (144%) gap, with Ludhiana the more polluted and Gangtok the cleaner of the two.
Seasonality & days
Gangtok peaks in March, while Ludhiana peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Ludhiana 53 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Gangtok has better air quality with an AQI of 51 compared to Ludhiana's 73.