ToxiMapp: Mapping 1,900 Toxins Near Your Home
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.
The episode covers how ToxiMapp's patent-pending toxin intensity scoring system works across air, water, and land media; why the platform is positioned as a shortcut for Phase I environmental site assessments and NEPA reviews; how partnerships with healthcare providers and diagnostic labs like Mosaic Diagnostics connect environmental exposure data to clinical testing; and what the roadmap looks like as the platform approaches 1,900 tracked toxicants and adds surface water and expanded air quality datasets.
The conversation also addresses PFAS contamination, the ethics of publishing environmental data near residential properties, crowdsourcing as a future data collection strategy, and the platform's current pricing model starting at $19.99 per address search.
#EnvironmentalHealth #ToxiMapp #toxins #data #mapping #environment #riskmanagement #pfas
TAGS:
environmental toxins map, toxic neighborhood score, environmental site assessment tool, PFAS tracking, EPA ECHO alternative, EnviroAtlas, Mosaic Diagnostics, cancer cluster, environmental intelligence platform, geospatial environmental data, phase one ESA, brownfield sites, Superfund sites, environmental consulting tools, air water soil contamination, environmental health podcast, GIS environmental analysis
Learn more at https://www.toximapp.com/
Thanks to our Sponsors: Cascade Environmental, E-Tank & E-Pump, and WASTELINQ

Founder / CEO
Deb Hordon Ph.D., is Founder/CEO of ToxiMapp, an environmental-intelligence platform that helps individuals and professionals know which toxicants are present in the air, water, and soil (and where they are located) near any address in America. Think, “Carfax for the environment surrounding every location.”
Deb has a Ph.D. in quantitative sociology from Columbia University and worked as a researcher at Harvard Medical School's Department of Healthcare Policy. She has also been an organizational and leadership consultant and lived and worked all over the world (Lima, Istanbul, Milan, London, Dublin) for many years.
Deb's personal experience moving her baby to two different towns with hidden cancer clusters awakened her to the presence of environmental toxicants in unexpected locations, and the criticality of knowing where toxicants are to make informed decisions – for her own and everyone’s families, and for businesses and organizations across the board.
Chief Environmental Officer
Peter Cada is Chief Environmental Scientist at ToxiMapp, an environmental-intelligence platform that helps individuals and professionals know which toxicants are present in the air, water, and soil (and where they are located) near any address in America. Think, “Carfax for the environment surrounding every location.” He is an Instructor at Duke University’s graduate School of the Environment. He was formerly a contributor to the EPA’s EnviroAtlas. He is a seasoned environmental consultant with deep experience managing highly visible projects leveraging environmental analyses, geospatial analyses, and data management for government agencies, educational institutions, and private consulting firms. Certified as a Geographic Information Systems Professional (GISP) by the Geographic Information Systems Certification Institute (GISCI), he is skilled in level-of-effort estimation, technical analyses, GIS-based figure production, evaluating ecosystem services, land use, and watershed development, and subsequent impacts on downstream ecosystems.
Peter began his environmental career out in the field measuring water body contamination in the country’s most toxic rivers, streams, lakes, and swamps.




















