Across the Arctic archipelago, air quality data paints a complex picture defined by both natural phenomena and emerging human impacts. Seasonal shifts heavily influence pollutant concentrations, with winter months showing unexpected spikes in particulate matter due to temperature inversions and heightened use of local heating sources. Despite minimal industrial activity, localized emissions from research stations and increased tourism contribute to fluctuating levels of nitrogen dioxide (NO2) and sulfur dioxide (SO2). Uniquely, the region experiences episodes of long-range pollutant transport, whereby contaminants originating thousands of kilometers away amplify environmental pressures on these fragile ecosystems.

Monitoring efforts highlight several critical challenges:

  • Rapid climate…