Assessment of trace elements directly from archived total suspended particulate filters by laser ablation ICP-MS: A case study of South Carolina

Autor: Sarah Commodore, Steven Christopher, Bethany Wolf, Erik Svendsen
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Trace Elements and Minerals, Vol 3, Iss , Pp 100041- (2023)
Druh dokumentu: article
ISSN: 2773-0506
DOI: 10.1016/j.jtemin.2022.100041
Popis: Background: Exposure to particulate air pollution is one of the greatest environmental risk factors for adverse human health outcomes. However, the constituents that may be responsible for such adverse health effects have not been fully studied. Methods: Total suspended particulates filters collected every 6 days in 2011 from three South Carolina locations were used in this case study. An inductively coupled plasma mass spectrometer interfaced with a laser ablation system (LA-ICP-MS) was used to directly analyze 41 inorganic elemental species on air pollution filters. Then, machine learning and multivariate statistical methods was employed to identify combinatorial patterns in the data and classify sites based on their elemental composition. Results: Forty-one elements were assessed and 33 were used in subsequent analysis. Correlations between United States Environmental Protection Agency (US EPA)’s chemical analysis dataset and data from the current study revealed significant associations between 7/15 elements with enough variation for comparison (r between 0.28 to 0.66, p
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