Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions
This study examines the mass size distributions and crustal enrichment factors (EFs) of arsenic (As), cadmium (Cd), and lead (Pb) for diverse regions: coastal marine (Marina, California), arid mining facility (Hayden, Arizona), arid urban (Tucson, Arizona), free troposphere (Mt. Lemmon, Arizona), an...
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Archīum Ateneo
2021
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ph-ateneo-arc.physics-faculty-pubs-10732022-03-28T08:46:24Z Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions Gonzalez, Marisa E Stahl, Connor Cruz, Melliza Templonuevo Bañaga, Paola Angela Betito, Grace Braun, Rachel A Aghdam, Mojtaba Azadi Cambaliza, Maria Obiminda L Lorenzo, Genevieve Rose MacDonald, Alexander B Simpas, James Bernard Csavina, Janae Sáez, A. Eduardo Betterton, Eric Sorooshian, Armin This study examines the mass size distributions and crustal enrichment factors (EFs) of arsenic (As), cadmium (Cd), and lead (Pb) for diverse regions: coastal marine (Marina, California), arid mining facility (Hayden, Arizona), arid urban (Tucson, Arizona), free troposphere (Mt. Lemmon, Arizona), and coastal urban (Manila, Philippines). Micro-orifice uniform deposit impactor (MOUDI) measurements revealed several notable features. All sites showed a bimodal profile with a peak in the submicrometer and supermicrometer diameter range except for Manila, which peculiarly lacked a peak above 1 μm. Enrichment factor analysis revealed contaminated dust at all sites, even the free tropospheric site, with greater contamination in the submicrometer range. The most extensive dataset in Manila allowed for seasonal analysis, which revealed differences among the same species based on seasonally-dependent transport patterns. Sites experiencing biomass burning influence (Manila and Marina) generally exhibited suppressed concentrations and crustal EFs during burning periods presumably because soil emitted from fires is fresh without extensive processing time to become contaminated. These results have important implications for a variety of aerosol effects dependent on aerosol size (e.g., public health, biogeochemical cycling, heterogeneous chemistry) and underscore the importance of accounting for the coarse aerosol mode as more dust emissions are expected in warmer climate scenarios. 2021-01-05T08:00:00Z text https://archium.ateneo.edu/physics-faculty-pubs/78 https://www.sciencedirect.com/science/article/abs/pii/S1309104221000039 Physics Faculty Publications Archīum Ateneo CAMP2Ex Particulate matter Lead Toxicity Aerosol Size distribution Earth Sciences Oceanography and Atmospheric Sciences and Meteorology Physics |
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CAMP2Ex Particulate matter Lead Toxicity Aerosol Size distribution Earth Sciences Oceanography and Atmospheric Sciences and Meteorology Physics |
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CAMP2Ex Particulate matter Lead Toxicity Aerosol Size distribution Earth Sciences Oceanography and Atmospheric Sciences and Meteorology Physics Gonzalez, Marisa E Stahl, Connor Cruz, Melliza Templonuevo Bañaga, Paola Angela Betito, Grace Braun, Rachel A Aghdam, Mojtaba Azadi Cambaliza, Maria Obiminda L Lorenzo, Genevieve Rose MacDonald, Alexander B Simpas, James Bernard Csavina, Janae Sáez, A. Eduardo Betterton, Eric Sorooshian, Armin Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions |
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This study examines the mass size distributions and crustal enrichment factors (EFs) of arsenic (As), cadmium (Cd), and lead (Pb) for diverse regions: coastal marine (Marina, California), arid mining facility (Hayden, Arizona), arid urban (Tucson, Arizona), free troposphere (Mt. Lemmon, Arizona), and coastal urban (Manila, Philippines). Micro-orifice uniform deposit impactor (MOUDI) measurements revealed several notable features. All sites showed a bimodal profile with a peak in the submicrometer and supermicrometer diameter range except for Manila, which peculiarly lacked a peak above 1 μm. Enrichment factor analysis revealed contaminated dust at all sites, even the free tropospheric site, with greater contamination in the submicrometer range. The most extensive dataset in Manila allowed for seasonal analysis, which revealed differences among the same species based on seasonally-dependent transport patterns. Sites experiencing biomass burning influence (Manila and Marina) generally exhibited suppressed concentrations and crustal EFs during burning periods presumably because soil emitted from fires is fresh without extensive processing time to become contaminated. These results have important implications for a variety of aerosol effects dependent on aerosol size (e.g., public health, biogeochemical cycling, heterogeneous chemistry) and underscore the importance of accounting for the coarse aerosol mode as more dust emissions are expected in warmer climate scenarios. |
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Gonzalez, Marisa E Stahl, Connor Cruz, Melliza Templonuevo Bañaga, Paola Angela Betito, Grace Braun, Rachel A Aghdam, Mojtaba Azadi Cambaliza, Maria Obiminda L Lorenzo, Genevieve Rose MacDonald, Alexander B Simpas, James Bernard Csavina, Janae Sáez, A. Eduardo Betterton, Eric Sorooshian, Armin |
author_facet |
Gonzalez, Marisa E Stahl, Connor Cruz, Melliza Templonuevo Bañaga, Paola Angela Betito, Grace Braun, Rachel A Aghdam, Mojtaba Azadi Cambaliza, Maria Obiminda L Lorenzo, Genevieve Rose MacDonald, Alexander B Simpas, James Bernard Csavina, Janae Sáez, A. Eduardo Betterton, Eric Sorooshian, Armin |
author_sort |
Gonzalez, Marisa E |
title |
Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions |
title_short |
Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions |
title_full |
Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions |
title_fullStr |
Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions |
title_full_unstemmed |
Contrasting the Size-Resolved Nature of Particulate Arsenic, Cadmium, and Lead Among Diverse Regions |
title_sort |
contrasting the size-resolved nature of particulate arsenic, cadmium, and lead among diverse regions |
publisher |
Archīum Ateneo |
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2021 |
url |
https://archium.ateneo.edu/physics-faculty-pubs/78 https://www.sciencedirect.com/science/article/abs/pii/S1309104221000039 |
_version_ |
1728621366346776576 |