EHS Zoominar: Dr. Perry Hystad - "Leveraging New Technologies to Measure and Model the External Exposome"

Feb 17 2021 - 12:00pm to 1:00pm
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Dr. Perry Hystad from Oregon State University will present "Leveraging New Technologies to Measure and Model the External Exposome" on Wednesday, February 17, 2021, from 12 to 1 pm, ET.


Identifying and preventing environmental causes of disease requires estimating long-term personal exposures. Most exposures do not have valid biomarkers and studies therefore rely on external exposure methods. Approaches are split broadly into methods for modelling exposures for large populations versus measuring exposures for small populations.

However, smartphones, big data, and new sensors offer tremendous opportunity for unifying these approaches and improving long-term personal exposure prediction at scales needed for population-based research. In this presentation Dr. Hystad will provide examples of: (1) leveraging existing individual time-activity data from Google Location History to estimate long-term environment exposures; (2) integrating image-based deep learning models to assess environmental exposures; and (3) applying new air pollution sensors to large epidemiological studies.

He will make the case that a multi-disciplinary approach is needed to combine these types of technologies to estimate long-term personal exposures for epidemiological research, but also to determine drivers of these exposures and new prevention opportunities. While available technologies can revolutionize environmental exposure science there are important ethical, privacy, and data sciences challenges that must be addressed before widespread implementation can occur.

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