Gangtok vs Surat
Side-by-side air quality comparison between Gangtok and Surat.
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 | Surat |
|---|---|---|
| PM2.5(µg/m³) | 33.90 | 25.70 |
| PM10(µg/m³) | 43.50 | 47.30 |
| NO₂(µg/m³) | 5.10 | 22.40 |
| SO₂(µg/m³) | 2.80 | 40.70 |
| O₃(µg/m³) | 130.00 | 35.00 |
| CO(µg/m³) | 360.00 | 266.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Surat averaged 83 — a 35-point (73%) gap, with Surat the more polluted and Gangtok the cleaner of the two. On 517 days when both cities reported, Gangtok was cleaner on 418 of them; the average daily gap was 77 AQI points.
Seasonality & days
Gangtok peaks in March, while Surat peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Surat 55 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Surat has better air quality with an AQI of 47 compared to Gangtok's 57.