Cargando…

Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces

This review considers the use of filters to sample air in mining workplace environments for dust concentration measurement and subsequent analysis of hazardous contaminants, especially respirable crystalline silica (RCS) on filters compatible with wearable personal dust monitors (PDM). The review su...

Descripción completa

Detalles Bibliográficos
Autores principales: Chow, Judith C., Watson, John G., Wang, Xiaoliang, Abbasi, Behrooz, Reed, Wm. Randolph, Parks, David
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10174218/
https://www.ncbi.nlm.nih.gov/pubmed/37180428
http://dx.doi.org/10.3390/min12101314
_version_ 1785039983970615296
author Chow, Judith C.
Watson, John G.
Wang, Xiaoliang
Abbasi, Behrooz
Reed, Wm. Randolph
Parks, David
author_facet Chow, Judith C.
Watson, John G.
Wang, Xiaoliang
Abbasi, Behrooz
Reed, Wm. Randolph
Parks, David
author_sort Chow, Judith C.
collection PubMed
description This review considers the use of filters to sample air in mining workplace environments for dust concentration measurement and subsequent analysis of hazardous contaminants, especially respirable crystalline silica (RCS) on filters compatible with wearable personal dust monitors (PDM). The review summarizes filter vendors, sizes, costs, chemical and physical properties, and information available on filter modeling, laboratory testing, and field performance. Filter media testing and selection should consider the characteristics required for mass by gravimetry in addition to RCS quantification by Fourier-transform infrared (FTIR) or Raman spectroscopic analysis. For mass determination, the filters need to have high filtration efficiency (≥99% for the most penetrable particle sizes) and a reasonable pressure drop (up to 16.7 kPa) to accommodate high dust loading. Additional requirements include: negligible uptake of water vapor and gaseous volatile compounds; adequate particle adhesion as a function of particle loading; sufficient particle loading capacity to form a stable particle deposit layer during sampling in wet and dusty environments; mechanical strength to withstand vibrations and pressure drops across the filter; and appropriate filter mass compatible with the tapered element oscillating microbalance. FTIR and Raman measurements require filters to be free of spectral interference. Furthermore, because the irradiated area does not completely cover the sample deposit, particles should be uniformly deposited on the filter.
format Online
Article
Text
id pubmed-10174218
institution National Center for Biotechnology Information
language English
publishDate 2022
record_format MEDLINE/PubMed
spelling pubmed-101742182023-05-11 Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces Chow, Judith C. Watson, John G. Wang, Xiaoliang Abbasi, Behrooz Reed, Wm. Randolph Parks, David Minerals (Basel) Article This review considers the use of filters to sample air in mining workplace environments for dust concentration measurement and subsequent analysis of hazardous contaminants, especially respirable crystalline silica (RCS) on filters compatible with wearable personal dust monitors (PDM). The review summarizes filter vendors, sizes, costs, chemical and physical properties, and information available on filter modeling, laboratory testing, and field performance. Filter media testing and selection should consider the characteristics required for mass by gravimetry in addition to RCS quantification by Fourier-transform infrared (FTIR) or Raman spectroscopic analysis. For mass determination, the filters need to have high filtration efficiency (≥99% for the most penetrable particle sizes) and a reasonable pressure drop (up to 16.7 kPa) to accommodate high dust loading. Additional requirements include: negligible uptake of water vapor and gaseous volatile compounds; adequate particle adhesion as a function of particle loading; sufficient particle loading capacity to form a stable particle deposit layer during sampling in wet and dusty environments; mechanical strength to withstand vibrations and pressure drops across the filter; and appropriate filter mass compatible with the tapered element oscillating microbalance. FTIR and Raman measurements require filters to be free of spectral interference. Furthermore, because the irradiated area does not completely cover the sample deposit, particles should be uniformly deposited on the filter. 2022-10-18 /pmc/articles/PMC10174218/ /pubmed/37180428 http://dx.doi.org/10.3390/min12101314 Text en https://creativecommons.org/licenses/by/4.0/This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chow, Judith C.
Watson, John G.
Wang, Xiaoliang
Abbasi, Behrooz
Reed, Wm. Randolph
Parks, David
Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces
title Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces
title_full Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces
title_fullStr Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces
title_full_unstemmed Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces
title_short Review of Filters for Air Sampling and Chemical Analysis in Mining Workplaces
title_sort review of filters for air sampling and chemical analysis in mining workplaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10174218/
https://www.ncbi.nlm.nih.gov/pubmed/37180428
http://dx.doi.org/10.3390/min12101314
work_keys_str_mv AT chowjudithc reviewoffiltersforairsamplingandchemicalanalysisinminingworkplaces
AT watsonjohng reviewoffiltersforairsamplingandchemicalanalysisinminingworkplaces
AT wangxiaoliang reviewoffiltersforairsamplingandchemicalanalysisinminingworkplaces
AT abbasibehrooz reviewoffiltersforairsamplingandchemicalanalysisinminingworkplaces
AT reedwmrandolph reviewoffiltersforairsamplingandchemicalanalysisinminingworkplaces
AT parksdavid reviewoffiltersforairsamplingandchemicalanalysisinminingworkplaces