Bulandshahr vs Gangtok
Side-by-side air quality comparison between Bulandshahr 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 | Bulandshahr | Gangtok |
|---|---|---|
| PM2.5(µg/m³) | 69.20 | 33.90 |
| PM10(µg/m³) | 121.10 | 43.50 |
| NO₂(µg/m³) | 22.90 | 5.10 |
| SO₂(µg/m³) | 11.10 | 2.80 |
| O₃(µg/m³) | 91.00 | 130.00 |
| CO(µg/m³) | 455.00 | 360.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Gangtok averaged 48 — a 94-point (196%) gap, with Bulandshahr the more polluted and Gangtok the cleaner of the two. On 783 days when both cities reported, Gangtok was cleaner on 728 of them; the average daily gap was 101 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Gangtok peaks in March. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Gangtok was 0% Severe and 96.2% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Gangtok 94 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Gangtok has worsened by 14 AQI points (41.2%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Gangtok hit AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Gangtok spans 1 stations with a 0-point spread (min 50, max 50).
Verdict
🏆 Gangtok has better air quality with an AQI of 57 compared to Bulandshahr's 131. That's a significant difference of 74 points.