Ambala vs Gangtok
Side-by-side air quality comparison between Ambala 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 | Ambala | Gangtok |
|---|---|---|
| PM2.5(µg/m³) | 47.60 | 36.20 |
| PM10(µg/m³) | 70.10 | 45.30 |
| NO₂(µg/m³) | 23.90 | 11.20 |
| SO₂(µg/m³) | 10.30 | 2.50 |
| O₃(µg/m³) | 56.00 | 101.00 |
| CO(µg/m³) | 618.00 | 522.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Gangtok averaged 48 — a 46-point (96%) gap, with Ambala the more polluted and Gangtok the cleaner of the two. On 714 days when both cities reported, Gangtok was cleaner on 614 of them; the average daily gap was 65 AQI points.
Seasonality & days
Ambala peaks in November, while Gangtok peaks in March. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Gangtok was 0% Severe and 96.2% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Gangtok 94 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Gangtok has worsened by 14 AQI points (41.2%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Gangtok hit AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Gangtok spans 1 stations with a 0-point spread (min 50, max 50).
Verdict
🏆 Gangtok has better air quality with an AQI of 61 compared to Ambala's 80.