Carry a kit on your next route and log water, air, heat and noise readings where fixed sensors never reach — creek banks, footbridges, trails, and the public sidewalk outside the datacenter going up down the road.
Agencies monitor from a handful of fixed stations. Groundtruth turns the people who walk the edges of the city into a distributed sensor network.
Water, air, heat, noise or soil. Each ships calibrated, with the standards to keep it that way and a field guide.
Take a reading, snap a photo, and the app stamps location and time. Works offline in tunnels and dead zones.
Every reading is tagged Screening or Quality-assured. Persistent problems get packaged for the agencies that can act on them.
Filter by kit, time range or neighborhood, and see at a glance whether each point is a screening reading or quality-assured. Follow an outfall through the seasons, or a new facility’s noise footprint month to month.
Explore the mapShare routes, cross-check each other’s readings, and join local chapters for group sampling days.
Join the community →Short courses on field safety, sampling technique and chain of custody, plus programs like Adopt-a-Site.
Browse programs →