Gangtok vs Ulhasnagar
Side-by-side air quality comparison between Gangtok and Ulhasnagar.
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 Ulhasnagar averaged 117 — a 69-point (144%) gap, with Ulhasnagar the more polluted and Gangtok the cleaner of the two. On 411 days when both cities reported, Gangtok was cleaner on 364 of them; the average daily gap was 71 AQI points.
Seasonality & days
Gangtok peaks in March, while Ulhasnagar peaks in January. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Ulhasnagar 74 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).