Objective:
1. To explore the association between daily mortality and air pollution and weather
2. To explore the existence of a threshold in the association between air pollution and daily mortality
3. To explore the nature of the deaths (harvesting hypothesis)

Activities:

1. Collection of data for 5 US Cities: weather, air pollution, daily deaths.
2. Validation of the data
3. Direct weather impact review (Kalkstein et al literature)
4. Analysis for each city:

a) weather impacts
b) pollution impacts
c) interactions
d) thresholds
e) nature of the deaths

Expected Results:

1 Concentrations-response curves for air pollution and weather related deaths, applicable to risk analyses.
2 Threshold for pollution effects.