Feasibility study of the mineralogical and morphological characterisation of respirable dusts present in casting operations

Abstract

Pulmonary disorders are an ongoing problem in Québec. These pathologies (chronic bronchitis, cancer of the respiratory tract, pneumoconioses) are caused by the inhalation of particles of complex composition. This project was undertaken to further our understanding of the nature of dust exposure in ferrous and non-ferrous foundries.

The chemical composition of both the core and surface of particles was found to vary as a function of particle size. Two particularly noteworthy findings were the presence of crystalline silica exclusively on particles with aerodynamic diameters of at least 1 micron, and the contamination of particles with aerodynamic diameters less than 1 micron by metals, including lead. Lead speciation was performed, yielding useful information which must be interpreted bearing in mind the specific toxicity of various forms of lead.

Produced Under this Project

Scientific Reports

Feasibility study of the speciation and morphological analysis of respirable dusts in the work environment of foundry workers Research Summary: PR-104
Chemical and morphological analysis of airborne dusts in the work environment of founders Research Report: R-064

Scientific Publications

Characterization of airborne dust from two non-ferrous foundries by physico-chemical methods and multivariate statistical analyses
Michaud D., Baril M., Dion C., Perrault G.
Source :
Journal of the Air & Waste Management Association, vol. 46, 1996, p. 450-457
Structures of cisamminedichloro(cyclopentylamine)platinum 0.25-hydrate and potassium trichloro(cyclopentylamène)platinate 0.5-hydrate
Dion C., Beauchamp A. L., Rochon F. D., Mélanson R.
Source :
Acta crystallographica Section C, vol. 45, 1989, p. 852-856
Correction de la masse des membranes filtrantes de cellulose en fonction de l'huminité lors du dosage gravimétrique des poussières nuisibles ou respirables en milieu de travail
Beaulieu P., Perrault G., Roy C.
Source :
Analyses, Société chimique de France, vol. 14, 1986, p. 74-78
Selected sampling and chemical speciation of airborne dust in ferrous foundries
Perrault G., Dion C., Ostiguy C., Michaud D., Baril M.
Source :
American Industrial Hygiene Association Journal, vol. 53, no 7, 1992, p. 463-470
Application of a mathematical model of weight correction for several membranes used for dust sampling
Drolet D., Perrault G.
Source :
in American Industrial Hygiene Conference, (May 31-June 5, 1987 : Montréal, Canada), 1987, p. 77-78
Caractérisation des poussières dans les fonderies
Dion C., Perrault G., Ostiguy C., Blanchette B.
Source :
in XIIe congrès de l'Association pour l'hygiène industrielle au Québec / AHIQ, (12e : 3-4 mai, 1990 : Hull, Canada), 1990, p. 5
Characterization of respirable dust in foundries
Perrault G., Dion C., Ostiguy C., Baril M., Michaud D.
Source :
in American Industrial Hygiene Conference and Exposition / AIHCE, (May 21-26, 1989 : St-Louis, Missouri, USA), 1989, p. 121
Chemical speciation and morphological analysis of respirable dust in foundries
Perrault G., Dion C., Ostiguy C., Michaud D., Baril M.
Source :
in Proceedings of the VIIth International Pneumoconioses Conference, (7th : August 23-26, 1988 : Pittsburgh, Pennsylvania), 1988, p. 668-670

Additional Information

Type: Project

Number: 0086-0070

Status: Completed

Research Field: Chemical and Biological Hazard Prevention

Team:

Marcel Baril (Université Laval)
Claude Ostiguy (IRSST)
Guy Perrault (IRSST)