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Environmental Public Health Tracking

Adults and children enjoy playing outside.

Wisconsin Environmental Public Health Tracking (EPHT) is your source for environmental health data in Wisconsin.

We house data on more than a dozen environmental public health topics such as air quality, asthma, Lyme disease, and many others.

We work with data managers to host the most up-to-date data available.

Our data portal has improved mapping, exporting, mobility. It can also display data below the county level. (Note that the portal works best with Firefox and Chrome web browsers.)

Request for Applications Released

The Wisconsin Tracking Program has released the Taking Action with Data request for applications (RFA) on the State of Wisconsin Public Notices website. This project focuses on the development and implementation of initiatives to improve environmental health; local and Tribal health agencies may apply. The deadline for applying is Tuesday, June 25, 2024 at 3:30 p.m.

Interested in Tracking? Subscribe to our semiannual newsletter. You can learn more about us by reading our "Getting to Know Tracking" sheet, P-02446 (PDF).

Questions? Can't find what you're looking for? Contact us at


Last revised May 20, 2024