Airborne asbestos fibres monitoring in tunnel excavation

Gaggero, Laura; Sanguineti, Elisa; González, Antonio; Militello, Gaia M.; Scuderi, Alberto; Parisi, Giovanni

doi:10.1016/j.jenvman.2017.03.055

Cited by 19 publications

(12 citation statements)

References 29 publications

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“…After enforcement of the asbestos ban in most Western countries, tunneling remains a source of occupational and environmental exposures to asbestos and other asbestiform fibers. Recently Gaggero et al addressed this aspect by providing data from airborne dust analysis employing SEM‐EDS during tunneling excavation in an Italian Alp region with a serpentinite lens mainly consisting of chrysotile. Initially fiber concentrations were high, but could be significantly reduced by safety implementations including fog cannons, spraying the rock and watering the carriageway.…”

Section: Discussionmentioning

confidence: 99%

Review on the adverse health effects of asbestiform antigorite, a non‐regulated asbestiform serpentine mineral

Baur

2018

American J Industrial Med

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Section: Discussionmentioning

confidence: 99%

Review on the adverse health effects of asbestiform antigorite, a non‐regulated asbestiform serpentine mineral

Baur

2018

American J Industrial Med

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“…In Italy, problems in the interpretation, classification, and evaluation of asbestos content arose related to the production and processing of excavated soils and rocks [2]. In particular, the normative on quantitative analysis of asbestos defines the assessment occurrence [18][19][20].…”

Section: Figurementioning

confidence: 99%

“…Furthermore, high concentrations are found at the reaction zones between ultramafic and mafic rocks (actinolite-tremolite-rich schist). Therefore, several lithotypes can potentially contain asbestos, depending on metamorphic conditions and on the origin and structure of the host rock [2,22].…”

Section: Naturally Occurring Asbestos In Italymentioning

confidence: 99%

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The Concentration of Asbestos Fibers in Bulk Samples and Its Variation with Grain Size

et al. 2019

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The aim of this work was to establish whether asbestos fibers homogeneously occur in the different fractions ground from naturally occurring asbestos lithotypes, and to calculate the contribution of fibers from each fraction to the overall concentration in the sample. Serpentinite, metabasalt, calc-schist, clay, debris material, and soil, were addressed. Grain size fractions below 20 mm were sieved at 2 mm and 0.106 mm; they were then were mechanically milled to obtain powders below 0.106 mm. The three powdered fractions were characterized using a scanning electron microscope coupled with energy dispersive spectroscopy following M.D. 06/09/94. The still in use (in some cases), Italian normative M.D. 161/2012 specifies that analyses must be performed on the <2 mm fraction and the concentration (mg/kg) correlated with the weight of the whole sample <20 mm. However, the fiber counts yielded asbestos concentrations 50–60% lower compared with total asbestos analyses according to the new R.P.D. 120/2017. Consequently, there is a need to standardize the normative worldwide regulations for the management of asbestos-containing materials, by re-evaluation of sample preparation and quantification of asbestos.

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“…In recent years several studies have focused on NOA with the aim of determining the potential health risks for neighboring populations [19][20][21][22][23]. This is due to the relatively widespread presence of NOA that are currently being excavated for numerous construction projects (railway lines, motorways etc.).…”

Section: Introductionmentioning

confidence: 99%

Multi-Analytical Approach for Identifying Asbestos Minerals In Situ

Bloise

Miriello

2018

Geosciences

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An innovative and, as yet, untested approach is to analyze serpentinite and metabasite rocks containing asbestos using a portable multi-analytical device, which combines portable digital microscopy (p-DM), portable X-ray Fluorescence (p-XRF) and portable micro-Raman Spectroscopy (p-µR). The analyses were carried out in two inactive quarries of serpentinitic and metabasitic rocks from the Gimigliano-Mount Reventino Unit (Southern Italy) already characterized in previous studies, with the aim of testing the efficiency of these portable tools. In this study, a portable X-ray fluorescence analyzer was used to obtain the in situ rapid chemical discrimination of serpentinite and metabasite rocks. The characterization of outcropping rocks using portable devices enabled us to detect the presence of chrysotile and asbestos tremolite. The results obtained were consistent with the findings from previous research studies and therefore combining p-DM, p-XRF and p-µR could be a useful approach for discriminating asbestos contained in outcropping rocks, especially when sampling is prohibited or for field-based sampling.

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Airborne asbestos fibres monitoring in tunnel excavation

Cited by 19 publications

References 29 publications

Review on the adverse health effects of asbestiform antigorite, a non‐regulated asbestiform serpentine mineral

Review on the adverse health effects of asbestiform antigorite, a non‐regulated asbestiform serpentine mineral

The Concentration of Asbestos Fibers in Bulk Samples and Its Variation with Grain Size

Multi-Analytical Approach for Identifying Asbestos Minerals In Situ

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