A Quantitative Method to Measure the Kinetics of Elemental Mercury Emissions From Black Shale (Nova Scotia, Canada).
Bedrock
Black shale
Elemental mercury
Emissions
Flux
Kinetics
Rate constant
Journal
Bulletin of environmental contamination and toxicology
ISSN: 1432-0800
Titre abrégé: Bull Environ Contam Toxicol
Pays: United States
ID NLM: 0046021
Informations de publication
Date de publication:
28 Oct 2023
28 Oct 2023
Historique:
received:
27
07
2023
accepted:
22
09
2023
medline:
30
10
2023
pubmed:
29
10
2023
entrez:
29
10
2023
Statut:
epublish
Résumé
A controlled chamber method using continuous gold trap atomic fluorescence spectroscopy (AFS) (Tekran 2537X) for the analysis of Hg(0) emissions from moderate mass rock samples was developed and tested. A series of black shale and other bedrock samples from Nova Scotia, Canada, were used to test the method and its reproducibility. Hg(0) emissions at 170°C were measured to quantify both free surficial Hg(0) and Hg(0) that had penetrated the rock structure. High volumes of chamber air (45 L) were sampled using 30 min collection times to achieve detectable elemental mercury (Hg(0)) emissions. We found higher percentage masses of Hg(0) were released (1.1%-4.1% of total Hg mass present) in black shale samples as compared to granite and basalt samples from the same region (0.0%-0.3% released) over 350 h of continuous analysis time. The pseudo first order emission rate constants ranged from 0.015-0.245 h
Identifiants
pubmed: 37898591
doi: 10.1007/s00128-023-03816-3
pii: 10.1007/s00128-023-03816-3
doi:
Substances chimiques
Mercury
FXS1BY2PGL
basalt
0
granite
0
Minerals
0
Air Pollutants
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
57Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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