Ozone Chemistry and Photochemistry at the Surface of Icelandic Volcanic Dust: Insights from Elemental Speciation Analysis

• Main Authors: Maya Abou-Ghanem (6401174), Britta J. L. Jensen (11575199), Sarah A. Styler (761541), Manolis N. Romanias (1757788)
• Format: Other Non-Article Part of Journal/Newspaper
• Language: unknown
• Published: 2021
• Subjects: Biophysics; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; trace pollutant gases; predicted mineral phases; powerful semiconductor photocatalyst; icelandic volcanic dust; major dust events; indirectly via suspension; state surface area; reaction proceeds via; bet </ sub; volcanic pm would; volcanic pm; indirectly influence; pm leads; atmospheric pm; water vapor; results highlight; relatively modest; relative humidity; phase ozone; ozone chemistry; olivine ); major high; large fraction; help resolve; ground surface; glass fraction; glaciogenic sediments; direct reductions; competitive adsorbate; chemical composition; atmospheric reactivity; apparent contradiction; air quality; Langmuir; Iceland
• Online Access: https://doi.org/10.1021/acsearthspacechem.0c00363.s001

Volcanic particulate matter (PM), whether emitted directly as ash or indirectly via suspension of glaciogenic sediments, comprises a large fraction of atmospheric PM in Iceland, a major high-latitude dust source area. This PM leads to direct reductions in air quality and health; in addition, because...