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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Main Authors: 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
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Published: Archīum Ateneo 2021
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Online Access:https://archium.ateneo.edu/physics-faculty-pubs/78
https://www.sciencedirect.com/science/article/abs/pii/S1309104221000039
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spelling 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
institution Ateneo De Manila University
building Ateneo De Manila University Library
continent Asia
country Philippines
Philippines
content_provider Ateneo De Manila University Library
collection archium.Ateneo Institutional Repository
topic CAMP2Ex
Particulate matter
Lead
Toxicity
Aerosol
Size distribution
Earth Sciences
Oceanography and Atmospheric Sciences and Meteorology
Physics
spellingShingle 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
description 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.
format text
author 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
publishDate 2021
url https://archium.ateneo.edu/physics-faculty-pubs/78
https://www.sciencedirect.com/science/article/abs/pii/S1309104221000039
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