Particle size and metal composition of gouging and lancing fumes

Journal of Occupational and Environmental Hygiene
Marelé KeyterAnja Franken

Abstract

Metal gouging and lancing liberate particles of an unknown size and composition. Fumes are formed when vaporized materials condense in air, creating fine and ultrafine particles which can agglomerate. Particle sizes may be <1 µm in diameter. Inhalation of this mixture of metal fumes can lead to adverse health effects. This study characterized fumes by particle size fractions and metal composition. As particles may be in the submicron range, the nano-size fraction was included. Randomized, side-by-side area samples of fumes liberated during gouging and lancing were collected. Samplers included the conductive plastic Institute of Occupational Medicine (IOM) samplers (inhalable fraction), GK2.69 stainless steel thoracic cyclones (thoracic fraction), aluminum respirable cyclones (respirable fraction), Nanoparticle Respiratory Deposition (NRD) samplers (nano-size fraction), and open-face filter cassettes (particle size distribution-PSD). Samplers were mounted at a height of between 1.3 m and 1.7 m, in the worst-case scenario area (down-wind). Forty-six samples were collected during gouging and 26 during lancing. Mass concentrations per fraction ranges (excluding nano-size) were found to be 1.27-17.27 mg/m3 (inhalable), 1.83-13.96 mg...Continue Reading

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Citations

Sep 24, 2020·International Journal of Environmental Research and Public Health·Martin Harper
Nov 25, 2020·Occupational and Environmental Medicine·Denis Vinnikov, Zhangir Tulekov

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Methods Mentioned

BETA
Dynamic Light Scattering

Software Mentioned

GraphPad
SPSS
GraphPad Prism
Excel

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