Dust Under The Radar: Rethinking How to Evaluate the Impacts of Dust
Events on Air Quality in the United States
Abstract
Dust is an important and complex constituent of the atmospheric system,
having significant impacts on the environment, climate, air quality, and
human health. Although dust events are common across many regions of the
United States, their impacts are not often prioritized in air quality
mitigation strategies. We argue that there are at least three factors
that result in underestimation of the social and environmental impact of
dust events, making them receive less attention. These include (1)
sparse monitoring stations with irregular spatial distribution in
dust-influenced regions, (2) inconsistency with dust sampling methods,
and (3) sampling frequency and schedules, which can lead to missed dust
events or underestimation of dust particle concentrations. Without
addressing these three factors, it is challenging to characterize and
understand the full air quality impacts of dust events in the United
States. This paper highlights the need for additional monitoring to
measure these events so that we can more fully evaluate and understand
their impacts, as they are predicted to increase with climate change.