Faculty Candidate Seminar - Colleen Reid

03/01/2016 - 2:00pm

DATE:  March 1st & 2nd

LOCATION Seminar on 3/1 at 2pm in Hubbs Hall 4500 (SIO)
&  Chalk Talk on 3/2 at 12pm in MTF 168  (SOM)
SPEAKER:  Colleen Reid, Ph.D.
Harvard University

TITLE Health effects of the 2008 northern California wildfires: a spatiotemporal approach (Seminar on 3/1, abstract below)
Investigating the health co-benefits of urban greening programs (Chalk talk on 3/2)

Projections under likely climate change scenarios demonstrate that the area burned from wildfires and the length of the wildfire season will continue to increase in the western US and in many other parts of the world. Wildfires emit many air pollutants of concern for public health, most notably PM2.5 (particulate matter less than 2.5 microns in aerodynamic diameter). Exposure assessment for wildfire smoke is difficult because smoke plumes move over small spatial and temporal scales that are not adequately captured by air pollution monitoring networks. To improve exposure estimation, I estimated daily exposure to PM2.5 using an optimal exposure prediction model created through data-adaptive machine learning methods from a large set of spatiotemporal data sets. The model had good out-of-sample predictive performance at monitoring sites. I then estimated effects of these exposures on cardiovascular and respiratory hospitalizations and ED visits. Asthma hospitalizations and ED visits increased linearly with increasing PM2.5 during the wildfires. The observed association of PM2.5 with asthma health care utilization during the wildfires was not present in the periods before and after the fires. ED visits for chronic obstructive pulmonary disease (COPD) were associated with PM2.5 during the fires, but this effect was not significantly different from that found before or after the fires. The effect of PM2.5 during the wildfire period was more pronounced in women compared to men, and in adults aged 20-64 compared to children. We also found some differential effects by one measure of socio-economic status percent of owner-occupied housing at the ZIP code level. A spatiotemporal exposure model that combined information from a variety of sources including satellite data, can inform studies of wildfire smoke exposure in regions of the world without good monitoring data and about which we know little about health.
Faculty Host:    Wael Al-Delaimy (waldelaimy@ucsd.edu)
For more information on this event, contact: 
Leslie Costi
Event Calendar: 
Hubbs Hall 4500