Gangtok vs Rourkela
Side-by-side air quality comparison between Gangtok and Rourkela.
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 | Rourkela |
|---|---|---|
| PM2.5(µg/m³) | 30.30 | 36.80 |
| PM10(µg/m³) | 38.60 | 51.50 |
| NO₂(µg/m³) | 1.10 | 1.40 |
| SO₂(µg/m³) | 2.70 | 15.10 |
| O₃(µg/m³) | 150.00 | 200.00 |
| CO(µg/m³) | 264.00 | 257.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Rourkela averaged 115 — a 67-point (140%) gap, with Rourkela the more polluted and Gangtok the cleaner of the two. On 307 days when both cities reported, Gangtok was cleaner on 302 of them; the average daily gap was 99 AQI points.
Seasonality & days
Gangtok peaks in March, while Rourkela peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Rourkela was 0% Severe and 32.9% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Rourkela 60 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Rourkela has improved by 112 AQI points (49.3%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Rourkela hit AQI 344 at Raghunathpali (OSPCB) on 2024-01-01.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Rourkela spans 3 stations with a 29-point spread (min 106, max 135).
Verdict
🏆 Gangtok has better air quality with an AQI of 51 compared to Rourkela's 62.