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  1. Health effects of acid aerosols.

    Article, Communication - En anglais

    Acid Reign'95 ? International Conference on Acidic Deposition : Science & Policy. Göteborg SWE, 1995/06/26.

    Earlier in this century, a number of severe episodes clearly demonstrated that air pollution can affect human health ; these included documented increases in mortality and morbidity.

    Although health was clearly affected during these episodes and acidity is a candidate for the responsible agent, it has been difficult to ascertain which agents were involved.

    In the past several years extensive research was launched to learn the significance of acidic aerosols on human health.

    The question of a health threat from acid aerosols was first raised by epidemiology studies, but results of the body of epidemiological evidence collected to date have been mixed.

    Even when a study finds evidence of a response to exposures involving high ambient acidity levels, it is usually difficult to know which agent or agents are responsible for causing the effects noted.

    High levels of acidic aerosols are nearly always accompanied by high levels of other air pollutants which may have known or suspected effects on the respiratory tract.

    For this reason, an understanding of the potential mechanisms of acid aerosol health effects needs supporting evidence from the laboratory, where exposures to various agents can be controlled.

    To date, this supporting evidence includes demonstration of physiological responses at acidity levels greater than those that exist in the ambient environment.

    A limited number of studies have considered responses at levels more characteristic of ambient expos...

    Mots-clés Pascal : Pollution air, Aérosol, Acide, Toxicité, Homme, Epidémiologie, Mortalité, Etats Unis, Amérique du Nord, Amérique, Gaz toxique, Ammoniac, Sulfurique acide, Ammonium Sulfate, Nitrique acide, Appareil respiratoire pathologie, Animal, Nitreux acide, Hydrogène Chlorure

    Mots-clés Pascal anglais : Air pollution, Aerosols, Acids, Toxicity, Human, Epidemiology, Mortality, United States, North America, America, Toxic gas, Ammonia, Sulfuric acid, Ammonium Sulfates, Nitric acid, Respiratory disease, Animal, Nitrous acid, Hydrogen Chlorides

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

    Cote : 96-0209818

    Code Inist : 002B03M02. Création : 199608.