Background: Short-term exposure to ambient fine particulate matter (PM2. 5) concentrations
has been associated with increased mortality and morbidity. Determining which sources of …

BACKGROUND Epidemiologic time-series studies conducted in a number of cities have
identified, in general, an association between daily changes in concentration of ambient …

Background The APHENA (Air Pollution and Health: A Combined European and North
American Approach) study is a collaborative analysis of multicity time-series data on the …

Fine particles and coarse particles are defined in terms of the modal structure of particle size
distributions typically observed in the atmosphere. Differences between the various mdes …

Recent epidemiological research suggests that short-term effects of particle matter (PM) in
urban areas may preferentially be driven by fine fractions. Questions remain concerning the …

We examined the association between particulate matter [less than/equal to] 10 microm;(PM
(10)) and hospital admission for heart and lung disease in ten US cities. Our three goals …

Rationale: A large body of epidemiologic literature has found an association of increased
fine particulate air pollution (PM2. 5) with acute and chronic mortality. The effect of …

Background: The American Cancer Society study and the Harvard Six Cities study are 2
landmark cohort studies for estimating the chronic effects of fine particulate air pollution (PM …

Particulate air pollution has been associated with increased mortality during episodes of
high pollution concentrations. The relationship at lower concentrations has been more …

This paper explores the relationship between daily mortality and suspended particulates in
Santa Clara County, CA, for years 1980 to 1986. An association was found between high …