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Elemental characterization and risk assessment of indoor aerosols in an electrostatic particle accelerator laboratory.
- Source :
- Environmental Pollutants & Bioavailability; Dec 2021, Vol. 33 Issue 1, p334-346, 13p
- Publication Year :
- 2021
-
Abstract
- Aerosol samples (PM<subscript>10</subscript> and PM<subscript>2.5</subscript>) were collected during the 2018-2019 dry-cold season, inside an electrostatic particle accelerator laboratory at Instituto de Física, Universidad Nacional Autónoma de México, and on the rooftop. The goal was to measure gravimetric mass and elemental concentrations, to identify emitting sources, and to assess risks to human health due to inhalation, ingestion and dermal deposition, through Hazard Quotients. Concentrations of Mg, Al, Si, P, S, Cl, K, Ca, V, Mn, Fe, Ni, Cu, and Zn were measured with X-ray Fluorescence. Mass concentrations were lower indoors than outdoors. Elemental/gravimetric mass concentrations ratios showed that S, Ni, Cu, and Zn were more abundant in both indoors particle sizes, plus P in PM<subscript>2.5</subscript>. Possible sources, found through Cluster Analysis, were geogenic, SF<subscript>6</subscript> subproducts, vacuum pump oil, and air conditioning, supported by Scanning Emission Microscopy and Electron Probe Microanalysis. Health risks due to enriched elements are not significant. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 26395932
- Volume :
- 33
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Environmental Pollutants & Bioavailability
- Publication Type :
- Academic Journal
- Accession number :
- 154269211
- Full Text :
- https://doi.org/10.1080/26395940.2021.1988869