Adaptation of the BCR sequential extraction procedure for fractionation of potentially toxic elements in airborne particulate matter collected during routine air quality monitoring

Balarabe S. Sagagi, Christine M. Davidson*, Andrew S. Hursthouse

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

The Community Bureau of Reference (BCR) four-step sequential extraction has been adapted for fractionation of potentially toxic elements (PTE) in simulant airborne particulate matter (APM) samples presented on 47 mm filter dynamics measurement system (FDMS) filters as used in routine air quality monitoring. Simulants were prepared from an urban soil reference material and from BCR CRM 701, which is certified for analytes extractable by the BCR procedure. Analysis was performed by inductively coupled plasma mass spectrometry using an Agilent 7700x instrument. Fractionation patterns similar to the full-scale protocol were obtained when test portions as small as 0.0625 g were extracted in 2–3 mL of reagents. However, changing the extraction vessel used was found to affect the outcome. This highlights the operational nature of sequential extraction procedures and the need carefully to evaluate the effects of procedural modifications. When the method developed was applied to blank FDMS filters, large amounts of Zn were detected, especially in step 3, the oxidisable fraction, and step 4, the residual fraction. Despite this, following blank-correction, fractionation patterns similar to certified values were obtained for BCR CRM 701, with overall recoveries (∑(steps 1–4)) of 84.2-113%. Given the increased awareness of public health risks associated with poor air quality, a sequential extraction procedure specifically designed for use with APM samples collected during routine air quality represents a valuable tool for use in source
apportionment and to improve understanding of human exposure to PTE through inhalation.
Original languageEnglish
JournalInternational Journal of Environmental Analytical Chemistry
Early online date10 Oct 2019
DOIs
Publication statusE-pub ahead of print - 10 Oct 2019

Fingerprint

Particulate Matter
air quality
Poisons
Fractionation
Air quality
particulate matter
fractionation
particulates
Air
filter
Monitoring
monitoring
Public risks
urban soils
Inductively coupled plasma mass spectrometry
Health risks
atomic absorption spectrometry
Public health
health risk
Inhalation

Keywords

  • Sequential extraction
  • Airborne particulate matter
  • Potentially toxic elements
  • BCR
  • Adaptation

Cite this

@article{273d61a272404f2b85802791e6153c6e,
title = "Adaptation of the BCR sequential extraction procedure for fractionation of potentially toxic elements in airborne particulate matter collected during routine air quality monitoring",
abstract = "The Community Bureau of Reference (BCR) four-step sequential extraction has been adapted for fractionation of potentially toxic elements (PTE) in simulant airborne particulate matter (APM) samples presented on 47 mm filter dynamics measurement system (FDMS) filters as used in routine air quality monitoring. Simulants were prepared from an urban soil reference material and from BCR CRM 701, which is certified for analytes extractable by the BCR procedure. Analysis was performed by inductively coupled plasma mass spectrometry using an Agilent 7700x instrument. Fractionation patterns similar to the full-scale protocol were obtained when test portions as small as 0.0625 g were extracted in 2–3 mL of reagents. However, changing the extraction vessel used was found to affect the outcome. This highlights the operational nature of sequential extraction procedures and the need carefully to evaluate the effects of procedural modifications. When the method developed was applied to blank FDMS filters, large amounts of Zn were detected, especially in step 3, the oxidisable fraction, and step 4, the residual fraction. Despite this, following blank-correction, fractionation patterns similar to certified values were obtained for BCR CRM 701, with overall recoveries (∑(steps 1–4)) of 84.2-113{\%}. Given the increased awareness of public health risks associated with poor air quality, a sequential extraction procedure specifically designed for use with APM samples collected during routine air quality represents a valuable tool for use in sourceapportionment and to improve understanding of human exposure to PTE through inhalation.",
keywords = "Sequential extraction, Airborne particulate matter, Potentially toxic elements, BCR, Adaptation",
author = "Sagagi, {Balarabe S.} and Davidson, {Christine M.} and Hursthouse, {Andrew S.}",
year = "2019",
month = "10",
day = "10",
doi = "10.1080/03067319.2019.1674847",
language = "English",
journal = "International Journal of Environmental Analytical Chemistry",
issn = "0306-7319",
publisher = "Taylor & Francis",

}

TY - JOUR

T1 - Adaptation of the BCR sequential extraction procedure for fractionation of potentially toxic elements in airborne particulate matter collected during routine air quality monitoring

AU - Sagagi, Balarabe S.

AU - Davidson, Christine M.

AU - Hursthouse, Andrew S.

PY - 2019/10/10

Y1 - 2019/10/10

N2 - The Community Bureau of Reference (BCR) four-step sequential extraction has been adapted for fractionation of potentially toxic elements (PTE) in simulant airborne particulate matter (APM) samples presented on 47 mm filter dynamics measurement system (FDMS) filters as used in routine air quality monitoring. Simulants were prepared from an urban soil reference material and from BCR CRM 701, which is certified for analytes extractable by the BCR procedure. Analysis was performed by inductively coupled plasma mass spectrometry using an Agilent 7700x instrument. Fractionation patterns similar to the full-scale protocol were obtained when test portions as small as 0.0625 g were extracted in 2–3 mL of reagents. However, changing the extraction vessel used was found to affect the outcome. This highlights the operational nature of sequential extraction procedures and the need carefully to evaluate the effects of procedural modifications. When the method developed was applied to blank FDMS filters, large amounts of Zn were detected, especially in step 3, the oxidisable fraction, and step 4, the residual fraction. Despite this, following blank-correction, fractionation patterns similar to certified values were obtained for BCR CRM 701, with overall recoveries (∑(steps 1–4)) of 84.2-113%. Given the increased awareness of public health risks associated with poor air quality, a sequential extraction procedure specifically designed for use with APM samples collected during routine air quality represents a valuable tool for use in sourceapportionment and to improve understanding of human exposure to PTE through inhalation.

AB - The Community Bureau of Reference (BCR) four-step sequential extraction has been adapted for fractionation of potentially toxic elements (PTE) in simulant airborne particulate matter (APM) samples presented on 47 mm filter dynamics measurement system (FDMS) filters as used in routine air quality monitoring. Simulants were prepared from an urban soil reference material and from BCR CRM 701, which is certified for analytes extractable by the BCR procedure. Analysis was performed by inductively coupled plasma mass spectrometry using an Agilent 7700x instrument. Fractionation patterns similar to the full-scale protocol were obtained when test portions as small as 0.0625 g were extracted in 2–3 mL of reagents. However, changing the extraction vessel used was found to affect the outcome. This highlights the operational nature of sequential extraction procedures and the need carefully to evaluate the effects of procedural modifications. When the method developed was applied to blank FDMS filters, large amounts of Zn were detected, especially in step 3, the oxidisable fraction, and step 4, the residual fraction. Despite this, following blank-correction, fractionation patterns similar to certified values were obtained for BCR CRM 701, with overall recoveries (∑(steps 1–4)) of 84.2-113%. Given the increased awareness of public health risks associated with poor air quality, a sequential extraction procedure specifically designed for use with APM samples collected during routine air quality represents a valuable tool for use in sourceapportionment and to improve understanding of human exposure to PTE through inhalation.

KW - Sequential extraction

KW - Airborne particulate matter

KW - Potentially toxic elements

KW - BCR

KW - Adaptation

U2 - 10.1080/03067319.2019.1674847

DO - 10.1080/03067319.2019.1674847

M3 - Article

JO - International Journal of Environmental Analytical Chemistry

JF - International Journal of Environmental Analytical Chemistry

SN - 0306-7319

ER -