The Environmental Transformation Podcast with Sean Grady · 2026-05-12 · 56 min
ToxiMapp aggregates over 60 geospatial environmental datasets to show users exactly which toxicants are present in the air, water, and soil near any U.S. address, and the platform's founders say most people have no idea what surrounds them. Deb Hordon, Ph.D. , founder and CEO of ToxiMapp, built the platform after moving her infant daughter into two separate communities with cancer clusters. Neither location looked dangerous. One was a picturesque seacoast area between Maine and New Hampshire with expensive real estate and top-rated schools. The data told a different story. Peter Cada , chief environmental scientist at ToxiMapp and an instructor at Duke University's Nicholas School of the Environment, joined to build the underlying data infrastructure, drawing on his prior work contributing to the EPA's EnviroAtlas.
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