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  1. Acetic aldehyde and formaldehyde in cutting fluids and their relation to irritant symptoms.

    Article - En anglais

    The objective was to study the formation of acetic aldehyde in cutting fluids and its relation to irritation of mucous membranes and the skin.

    Acetic aldehyde and formaldehyde were analysed in two large cutting fluid systems in an engineering industry.

    Samples were taken 1-5 times a week during a year.

    Concentration of the cutting fluid, leakage oils, pH, bacteria, yeast and fungi were analysed weekly.

    The occurrence of mucous membrane irritation was registered through questionnaires to the exposed workers.

    About 50 persons were exposed to each of the cutting fluids.

    The concentration of the aldehydes varied with time and between the cutting fluids.

    None of the analysed parameters could explain the variable concentration of aldehydes.

    A few measurements of ammonia indicated a higher concentration of ammonia in the fluid that caused most symptoms.

    It is concluded that irritation of mucous membranes and the skin may vary considerably between different cutting fluids of similar composition and use but the causal factor could not be determined in this study, but a variable pH and an increased concentration of ammonia may be indicators in this context.

    The concentration of acetic aldehyde vary with time and between cutting fluids with similar composition.

    A high variability may be an indicator of less stable cutting fluids.

    Better markers for the surveillance. of cutting fluids needs to be developed as well as a health control programme.

    Mots-clés Pascal : Formaldéhyde, Acétaldéhyde, Fluide coupe, Exposition professionnelle, Irritation, Muqueuse, Peau, Industrie, Médecine travail, Homme, Muqueuse pathologie, Peau pathologie

    Mots-clés Pascal anglais : Formaldehyde, Acetaldehyde, Cutting fluid, Occupational exposure, Irritation, Mucosa, Skin, Industry, Occupational medicine, Human, Mucosa disease, Skin disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 95-0570215

    Code Inist : 002B03L06. Création : 01/03/1996.