Bangalore vs Gangtok
Side-by-side air quality comparison between Bangalore 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 | Bangalore | Gangtok |
|---|---|---|
| PM2.5(µg/m³) | 5.10 | 36.20 |
| PM10(µg/m³) | 6.00 | 45.30 |
| NO₂(µg/m³) | 9.70 | 11.20 |
| SO₂(µg/m³) | 4.50 | 2.50 |
| O₃(µg/m³) | 34.00 | 101.00 |
| CO(µg/m³) | 230.00 | 522.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bangalore averaged an AQI of 74 while Gangtok averaged 48 — a 26-point (54%) gap, with Bangalore the more polluted and Gangtok the cleaner of the two. On 788 days when both cities reported, Gangtok was cleaner on 753 of them; the average daily gap was 74 AQI points.
Seasonality & days
Both cities see their worst air in March on average. Bangalore logged 0.5% Severe days and 42.6% Good-or-Satisfactory days; Gangtok was 0% Severe and 96.2% Good-or-Satisfactory. Longest clean-air streaks: Bangalore 31 days, Gangtok 94 days.
Year-over-year progress
Bangalore has improved by 26 AQI points (26%) from 2016 to 2024; Gangtok has worsened by 14 AQI points (41.2%) over the same window. The worst recorded day for Bangalore reached AQI 500 at Silk Board (KSPCB) on 2024-01-10; Gangtok hit AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16.
Station-level disparity
Bangalore spans 14 CPCB stations with a 50-point spread (min 49, max 99); Gangtok spans 1 stations with a 0-point spread (min 50, max 50).
Verdict
🏆 Bangalore has better air quality with an AQI of 9 compared to Gangtok's 61. That's a significant difference of 52 points.