Ahmedabad vs Gangtok
Side-by-side air quality comparison between Ahmedabad and Gangtok.
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 | Ahmedabad | Gangtok |
|---|---|---|
| PM2.5(µg/m³) | 23.50 | 35.70 |
| PM10(µg/m³) | 38.60 | 45.20 |
| NO₂(µg/m³) | 6.50 | 8.70 |
| SO₂(µg/m³) | 5.20 | 2.60 |
| O₃(µg/m³) | 41.00 | 112.00 |
| CO(µg/m³) | 163.00 | 461.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ahmedabad averaged an AQI of 117 while Gangtok averaged 48 — a 69-point (144%) gap, with Ahmedabad the more polluted and Gangtok the cleaner of the two. On 784 days when both cities reported, Gangtok was cleaner on 773 of them; the average daily gap was 106 AQI points.
Seasonality & days
Ahmedabad peaks in November, while Gangtok peaks in March. Ahmedabad logged 0.1% Severe days and 23.7% Good-or-Satisfactory days; Gangtok was 0% Severe and 96.2% Good-or-Satisfactory. Longest clean-air streaks: Ahmedabad 25 days, Gangtok 94 days.
Year-over-year progress
Ahmedabad has worsened by 52 AQI points (80%) from 2016 to 2024; Gangtok has worsened by 14 AQI points (41.2%) over the same window. The worst recorded day for Ahmedabad reached AQI 430 at Raikhad (IITM) on 2023-03-17; Gangtok hit AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16.
Station-level disparity
Ahmedabad spans 9 CPCB stations with a 44-point spread (min 95, max 139); Gangtok spans 1 stations with a 0-point spread (min 50, max 50).
Verdict
🏆 Ahmedabad has better air quality with an AQI of 39 compared to Gangtok's 60.