Gangtok vs Kochi
Side-by-side air quality comparison between Gangtok and Kochi.
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 | Kochi |
|---|---|---|
| PM2.5(µg/m³) | 35.70 | 8.80 |
| PM10(µg/m³) | 45.20 | 11.60 |
| NO₂(µg/m³) | 8.70 | 8.90 |
| SO₂(µg/m³) | 2.60 | 2.70 |
| O₃(µg/m³) | 112.00 | 30.00 |
| CO(µg/m³) | 461.00 | 119.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Kochi averaged 91 — a 43-point (90%) gap, with Kochi the more polluted and Gangtok the cleaner of the two. On 463 days when both cities reported, Gangtok was cleaner on 414 of them; the average daily gap was 52 AQI points.
Seasonality & days
Gangtok peaks in March, while Kochi peaks in January. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Kochi was 0% Severe and 70.9% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Kochi 80 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Kochi has worsened by 7 AQI points (8.3%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Kochi hit AQI 293 at Vyttila Kochi (PCB) on 2022-12-08.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Kochi spans 1 stations with a 0-point spread (min 88, max 88).
Verdict
🏆 Kochi has better air quality with an AQI of 15 compared to Gangtok's 60.