Gangtok vs Hosur
Side-by-side air quality comparison between Gangtok and Hosur.
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 | Hosur |
|---|---|---|
| PM2.5(µg/m³) | 36.20 | 5.00 |
| PM10(µg/m³) | 45.30 | 6.00 |
| NO₂(µg/m³) | 11.20 | 9.20 |
| SO₂(µg/m³) | 2.50 | 4.50 |
| O₃(µg/m³) | 101.00 | 37.00 |
| CO(µg/m³) | 522.00 | 147.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Hosur averaged 90 — a 42-point (88%) gap, with Hosur the more polluted and Gangtok the cleaner of the two. On 72 days when both cities reported, Gangtok was cleaner on 68 of them; the average daily gap was 60 AQI points.
Seasonality & days
Gangtok peaks in March, while Hosur peaks in December. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Hosur was 0% Severe and 73.89999999999999% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Hosur 10 days.
Year-over-year progress
The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Hosur hit AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Hosur spans 1 stations with a 0-point spread (min 90, max 90).
Verdict
🏆 Hosur has better air quality with an AQI of 8 compared to Gangtok's 61. That's a significant difference of 53 points.