Is there a causal association between excess mortality and exposure to PM-10 air pollution? additional analyses by location, year, season, and cause of death

Joseph L. Lyon, Motomi Mori, Renlu Gao

    Research output: Contribution to journalArticlepeer-review

    18 Scopus citations

    Abstract

    We examined the association between exposure to PM-10 air pollution and daily mortality in Utah County, Utah, for 1985-1992. We confirmed the previous finding that exposure to fine particulate air pollution (particulate diameter of <10 μm) in amounts of 50+ μg/m3 increased daily mortality by 4% The potential importance of this observation led us to test the association more rigorously by assessing rate ratios (RR) of PM-10 for year, season, and location at time of death. For individual years there was no statistically significant association between increased mortality and exposure to PM-10 air pollution. The strongest mortality effect was seen in the spring, not the winter. The largest numeric contribution to excess mortality was from individuals age 75 + yr dying in a hospital, and the largest RR was for individuals ages 15-59 yr dying at home, primarily of cancer. These findings do not support a causal association between exposure to PM-10 air pollution and daily mortality.

    Original languageEnglish (US)
    Pages (from-to)603-614
    Number of pages12
    JournalInhalation Toxicology
    Volume7
    Issue number5
    DOIs
    StatePublished - 1995

    ASJC Scopus subject areas

    • Toxicology
    • Health, Toxicology and Mutagenesis

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