Gangtok vs Ujjain
Side-by-side air quality comparison between Gangtok and Ujjain.
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 | Ujjain |
|---|---|---|
| PM2.5(µg/m³) | 25.80 | 11.65 |
| PM10(µg/m³) | 32.80 | 82.52 |
| NO₂(µg/m³) | 1.50 | 24.98 |
| SO₂(µg/m³) | 2.70 | 1.10 |
| O₃(µg/m³) | 145.00 | 14.95 |
| CO(µg/m³) | 273.00 | 689.58 |
| NH3(ppb) | — | 38.47 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Ujjain averaged 116 — a 68-point (142%) gap, with Ujjain the more polluted and Gangtok the cleaner of the two. On 684 days when both cities reported, Gangtok was cleaner on 656 of them; the average daily gap was 80 AQI points.
Seasonality & days
Gangtok peaks in March, while Ujjain peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Ujjain 67 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).
Verdict
🏆 Gangtok has better air quality with an AQI of 43 compared to Ujjain's 83.