Official websites use. Share sensitive information only on official, secure websites. West, Boston, MA Many studies have reported associations between ambient particulate matter PM and adverse health effects, focused on either short-term acute or long-term chronic PM exposures. For chronic effects, the studied cohorts have rarely been representative of the population.
We present a novel exposure model combining satellite aerosol optical depth and land-use data to investigate both the long- and short-term effects of PM 2. All deaths were geocoded. We performed two separate analyses: a time-series analysis for short-term exposure where counts in each geographic grid cell were regressed against cell-specific short-term PM 2. We tested whether these predicted the proportion of deaths from PM-related causes cardiovascular and respiratory diseases.
Local PM 2. We have developed a novel PM 2. Our approach allows us to gain spatial resolution in acute effects and an assessment of long-term effects in the entire population rather than a selective sample from urban locations.
Multiple studies in the United States and worldwide have shown associations between exposure to ambient particulate matter PM and adverse health effects. Previous studies have generally focused on either long-term chronic PM exposure 23 β 26 or short-term acute PM exposure.
Because PM 2. The lack of spatially resolved daily PM 2. Such studies have used mostly city-level contrasts, although more recent studies have incorporated estimates from land-use regression. For example, cohort studies with few exceptions eg, the Six City Study rely upon convenience samples that are not representative of the population either in demographic or geographic characteristics, raising questions about generalizability and the possibility of selection bias.
