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@article{2377217,
author = {Melymuk, Lisa Emily and Jílková, Simona Rozárka and Kolář, Michal and Svobodová, Petra and Vrana, Branislav and Hilscherová, Klára},
article_number = {3},
doi = {http://dx.doi.org/10.20517/jeea.2022.12},
keywords = {dust composition; dust exposure; Indoor dust; polycyclic aromatic hydrocarbons; size fractions},
language = {eng},
issn = {2771-5949},
journal = {Journal of Environmental Exposure Assessment},
title = {Questioning the appropriateness of sieving for processing indoor settled dust samples},
url = {https://www.oaepublish.com/articles/jeea.2022.12},
volume = {1},
year = {2022}
}
TY - JOUR
ID - 2377217
AU - Melymuk, Lisa Emily - Jílková, Simona Rozárka - Kolář, Michal - Svobodová, Petra - Vrana, Branislav - Hilscherová, Klára
PY - 2022
TI - Questioning the appropriateness of sieving for processing indoor settled dust samples
JF - Journal of Environmental Exposure Assessment
VL - 1
IS - 3
SP - 1-15
EP - 1-15
PB - OAE Publishing Inc.
SN - 27715949
KW - dust composition
KW - dust exposure
KW - Indoor dust
KW - polycyclic aromatic hydrocarbons
KW - size fractions
UR - https://www.oaepublish.com/articles/jeea.2022.12
N2 - Dust is a widely-used matrix for estimating human exposure to chemicals or as a screening tool for the identification of indoor chemicals of concern. As dust sampling became more common in exposure assessment, techniques used in processing soil have been adapted to dust samples, and separation of dust particles by sieving is common practice. However, there are no defined pore sizes, which results in inconsistent or difficult data interpretation and exposure estimates. Moreover, dust consists of more particle types than soil, particularly fibers, which behave differently during the sieving process. In this study, composite samples from seven microenvironments (homes, apartments, kindergartens, schools, public spaces, offices, and cars) were used to investigate the impact of the separation of dust by sieving on the observed chemical distributions. Dust was sieved to four particle size fractions (1-2 mm, 0.5-1 mm, 0.25-0.5 mm, and < 0.25 mm) and each fraction was analyzed for organic carbon content and polycyclic aromatic hydrocarbons (PAHs), and images of dust samples were taken by optical microscope. We identified irregular distributions across size fractions for carbon and PAHs as well as for fibrous particles. Based on the combination of chemical analyses and microscopy, we recommend careful consideration of pre-processing of dust samples to limit bias in dust exposure assessments, and sieving should be used only when necessary.
ER -
MELYMUK, Lisa Emily, Simona Rozárka JÍLKOVÁ, Michal KOLÁŘ, Petra SVOBODOVÁ, Branislav VRANA and Klára HILSCHEROVÁ. Questioning the appropriateness of sieving for processing indoor settled dust samples. \textit{Journal of Environmental Exposure Assessment}. OAE Publishing Inc., 2022, vol.~1, No~3, p.~1-15. ISSN~2771-5949. Available from: https://dx.doi.org/10.20517/jeea.2022.12.
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