Gangtok vs Shillong
Side-by-side air quality comparison between Gangtok and Shillong.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Shillong averaged 75 — a 27-point (56%) gap, with Shillong the more polluted and Gangtok the cleaner of the two. On 334 days when both cities reported, Gangtok was cleaner on 236 of them; the average daily gap was 23 AQI points.
Seasonality & days
Gangtok peaks in March, while Shillong peaks in February. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Shillong 113 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Shillong spans 2 stations with a 2-point spread (min 42, max 44).