Changes in the relative importance of biogenic isoprene and soil NOx emissions on ozone concentrations in nonattainment areas of the United States
2022 Geddes JA, Pusede SE, Wong AYH, Changes in the relative importance of biogenic isoprene and soil NOx emissions on ozone concentrations in nonattainment areas of the United States, Journal of Geophysical Research Atmospheres, doi: 10.1029/2021JD036361
In this publication, we used satellite-observations of nitrogen dioxide to infer trends in anthropogenic emissions of nitrogen oxide compounds (associated with fossil fuel burning). We then examine the role of natural emissions of nitrogen compounds (e.g., from soils), along with natural emissions of other reactive species from the biosphere, on interannual variability in urban air quality, in the context of these changes in anthropogenic emissions. The results have implications especially for understanding ground-level O3 concentrations in non-attainment areas of the United States.