Recent developments in assessment of bio-accessible trace metal fractions in airborne particulate matter: A review

Mukhtar, Asma; Limbeck, Andreas

doi:10.1016/j.aca.2013.02.008

Cited by 142 publications

(68 citation statements)

References 79 publications

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“…Although water, weak acids, buffers, etc. are frequently applied for risk assessment of metal toxicity, these solvents do not behave comparable to real body fluids and hence might provide only an insufficient estimation of BAMC (Mukhtar and Limbeck 2013). Differences in pH and composition of the leaching agents cause variations in the extraction efficiencies, thus impeding comparison of data obtained with different leaching agents.…”

Section: Introductionmentioning

confidence: 99%

The suitability of extraction solutions to assess bioaccessible trace metal fractions in airborne particulate matter: a comparison of common leaching agents

Mukhtar

Mohr

Limbeck

2015

Environ Sci Pollut Res

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The determination of bioaccessible metal concentrations and/or fractions is a prerequisite for reliable assessment of the hazardous potential of toxic trace metals present in airborne particulate matter (APM). For this purpose, the use of various leaching agents has been reported in literature. The applied reagents reveal severe differences in composition. Therefore, variations in the amounts of trace metals released from APM samples could be expected with the use of these agents, hampering comparison of literature data. In this work, bioaccessible metal fractions were determined in PM10 samples from Graz, Austria, and Karachi, Pakistan, using synthetic gastric juice (SGJ), artificial lysosomal fluid (ALF), Gamble's solution, aqueous solutions of sodium chloride, ammonium acetate, ammonium citrate, and water for sample extraction. Investigated trace metals showed distinct differences in extractable fractions for the same extractant. For example, bioaccessible contents ranged from 34.8 ± 13.3% for Ni (n = 12) to 77.9 ± 14.8% for Cd (n = 12) when SGJ was used for extraction. Furthermore, extraction yields for the applied leaching agents were determined, indicating for all investigated elements two to four times more efficient extraction with SGJ, ammonium citrate buffer, and ALF as compared to water and simple inorganic salt solutions, indicating that ammonium citrate buffer could be used as an alternative for synthetic body fluids with rather complex composition.

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Section: Introductionmentioning

confidence: 99%

The suitability of extraction solutions to assess bioaccessible trace metal fractions in airborne particulate matter: a comparison of common leaching agents

Mukhtar

Mohr

Limbeck

2015

Environ Sci Pollut Res

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“…Water appears to be the favored leaching agent by most, which is practical and cost efficient, but has been argued as being ill-suited to represent the in vivo conditions of the human lung [18][19][20]. Lung fluids are more complex in terms of their physico-chemical characteristics, with different pH levels and ionic strengths, which are expected to significantly contribute to the solubility of elemental fractions present in particles upon deposition.…”

Section: Introductionmentioning

confidence: 99%

Analytical methods for assessing metal bioaccessibility in airborne particulate matter: A scoping review

Wiseman

2015

Analytica Chimica Acta

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“…As, has been recently reviewed by Mukhtar and Limbeck [92], indicating leaching, procedures and analysis in relation to the fractioning according to particle size, rather than speciation of As.…”

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Analytical approaches for arsenic determination in air: A critical review

Sánchez-Rodas

Campa

Alsioufi

2015

Analytica Chimica Acta

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This review describes the different steps involved in the determination of arsenic in air, considering the particulate matter (PM) and the gaseous phase. The review focuses on sampling, sample preparation and instrumental analytical techniques for both total arsenic determination and speciation analysis. The origin, concentration and legislation concerning arsenic in ambient air are also considered. The review intends to describe the procedures for sample collection of total suspended particles (TSP) or particles with a certain diameter expressed in microns (e.g. PM10 and PM2.5), or the collection of the gaseous phase containing gaseous arsenic species. Sample digestion of the collecting media for PM is

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Recent developments in assessment of bio-accessible trace metal fractions in airborne particulate matter: A review

Cited by 142 publications

References 79 publications

The suitability of extraction solutions to assess bioaccessible trace metal fractions in airborne particulate matter: a comparison of common leaching agents

The suitability of extraction solutions to assess bioaccessible trace metal fractions in airborne particulate matter: a comparison of common leaching agents

Analytical methods for assessing metal bioaccessibility in airborne particulate matter: A scoping review

Analytical approaches for arsenic determination in air: A critical review

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