Exposure Assessment of Silver and Gold Nanoparticles Generated During the Synthesis Process in a South African Research Laboratory.
MPPD model
OEL
SMPS
aitken
nanoparticles
Journal
Frontiers in toxicology
ISSN: 2673-3080
Titre abrégé: Front Toxicol
Pays: Switzerland
ID NLM: 101777990
Informations de publication
Date de publication:
2022
2022
Historique:
received:
10
03
2022
accepted:
20
04
2022
entrez:
13
6
2022
pubmed:
14
6
2022
medline:
14
6
2022
Statut:
epublish
Résumé
During the synthesis of engineered nanomaterials (ENMs), various occupational exposures occur, leading to health consequences. To date, there is paucity of studies focused on modeling the deposition of nanoparticles emitted from ENMs synthesis processes. This study aimed to characterise and assess exposure to gold (AuNPs) and silver nanoparticles (AgNPs) during a synthesis process in a research laboratory in South Africa. AuNPs and AgNPs synthesis processes were monitored for an hour in a laboratory using a Scanning Mobility Particle Sizer. The monitoring was conducted at a height of 1.2-1.5 m (m) and 1.5 m away from the hood, assuming a 30 cm (cm) breathing circumference zone. Each synthesis process was monitored thrice to generate reliable point estimates, which were used to assess exposure over 8 hours. A time-weighted average concentration was calculated and compared to the derived 8-h occupational exposure limit (OEL) for AgNPs (0.19 μg/m
Identifiants
pubmed: 35694683
doi: 10.3389/ftox.2022.892703
pii: 892703
pmc: PMC9174523
doi:
Types de publication
Journal Article
Langues
eng
Pagination
892703Informations de copyright
Copyright © 2022 Masekameni, Andraos, Yu and Gulumian.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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