RIMA HABRE, SCD - USC Environmental Health...
Transcript of RIMA HABRE, SCD - USC Environmental Health...
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RIMA HABRE, SCD
Assistant Professor of Clinical Preventive Medicine
Division of Environmental Health, USC Keck School of Medicine
Parks, Pollution and Obesity Conference, April 2017
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Anthropogenic vs natural sources
Particulate and gaseous (aerosols)
Primary vs secondary The same pollutant can be both
sometimes
USEPA. http://www.epa.gov/apti/course422/ap3.html
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Particles Size (aerodynamic diameter, in
micrometers)
Counts (particle number, in thousands)
Mass (eg, micrograms per meters cubed)
Gases Mixing ratio of the gas molecule to air
(parts per million, parts per billion, etc..)
Roy and Milton, 2004
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Directly engages everyone in the process of scientific discovery
Data collection by enthusiasts, engaged stakeholders not just scientists
Learning, participation, involvement in community and policy-making process
www.epa.gov/air-sensor-toolbox
Aircasting.org
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Safecast.org
Habitatmap.org
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Formal evaluations of low-cost, air pollution sensors against reference methods
In the field and in the lab
PM (particulate matter) and gas sensors
Look for an R-squared (R2) value as close to 1 as possible
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• EPA Citizen Science page: https://www.epa.gov/citizen-science
• EPA Air Sensors Toolbox for Citizen Science: https://www.epa.gov/air-sensor-toolbox
• Build your own particle sensor, EPA workshop: https://www3.epa.gov/airnow/teachers/gh_pmsensorkit_handoutandinstructions.pdf
• AQ spec program: http://www.aqmd.gov/aq-spec/evaluations/summary
• Habitat Map: http://habitatmap.org/
• Safecast: http://blog.safecast.org/
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