Podcast: Gwen Ottinger studies technology's role in environmental justice
Knowledge is power and in this edition of Prototype Online we look at two technologies helping residents of "fenceline communities" monitor their air quality for pollutants. It's part of a study by Gwen Ottinger at the intersection of invention, public health and environmental justice.

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A production of the Smithsonian's Lemelson Center. Written and hosted by Paul Rosenthal. Audio production and theme music by Will Eastman. Art Molella, executive producer. Gwen Ottinger was interviewed on 16 July 2008 by Paul Rosenthal. Podcast released 15 August 2008.