Forecast before harm
Watch windows open from weather and river flow where shade is missing — before anyone gets sick.
Watchdog turns the people, pets and wildlife already at urban streams into a human-reviewed One Health warning network. It forecasts when a site is vulnerable, asks people to look, and keeps a person in charge of every warning.
Live replay · Fri 25 Sep 14:00
COI-03 · Rio Mondego, Coimbra
Heat and low-flow benthic cyanobacteria mats
69/100
watch score today
next 72 h · dashed = watch threshold
Heat and low water forecast. Keep dogs on leads near the water — and report what you see.
Live network
12 monitored reaches across OneAquaHealth’s pilot cities. Every dot is computed live from weather, river flow and each site’s habitat answers — 3 watch windows open right now.
CoimbraPT
4 sites · 1 Watch · 14:00 local
GhentBE
2 sites · 1 Advisory · 15:00 local
OsloNO
2 sites · Quiet baseline · 15:00 local
ToulouseFR
2 sites · 1 Signal · 15:00 local
BeneventoIT
2 sites · Quiet baseline · 15:00 local
How it works
The forecast decides where attention goes. People supply the evidence. A coordinator makes every public call — and each season teaches the next.
Weather, river flow and each site’s OAH habitat answers open 72-hour Watch windows where shade is missing and water is slow.
Walkers, pets and wildlife are the sentinels. A report takes three taps and thirty seconds — no account.
Independent reports fuse into a Signal. The coordinator sees every input, weight and rule in the Why drawer.
A bilingual precaution is drafted, edited and approved by a person. Nothing goes public automatically.
The event reaches health services as an HL7 FHIR R4 bundle — with the dog as an animal patient.
Citizen scientists answer look requests. Two independent clear checks, 24 hours on, resolve it.
The season ledger ranks restoration measures from OAH’s catalogue — like riparian shading.
No public advisory or FHIR bundle ever leaves Watchdog without a coordinator’s explicit approval. That is the loop’s one invariant.
Three principles
Watch windows open from weather and river flow where shade is missing — before anyone gets sick.
Walkers and citizen scientists report signs in three taps. Fish, birds and dogs are the early sentinels.
Drafts arrive in two languages, but no warning goes public without a coordinator’s explicit approval.
Who it’s for
Ana
Walker · Coimbra
Knows if today is a keep-the-dog-on-the-lead day, and can say when something looks wrong.
Open her streamTiago
Citizen scientist
Spends volunteer time where it matters most, with a four-item checklist.
See look requestsSofia Silva
Site coordinator
Decides quickly — and defensibly — whether to warn the public.
Open the consoleMarc Durand
Health liaison
Receives structured One Health signals his systems already read.
FHIR outboxDr Helena Lima
OAH researcher
Tests early-warning indicators against field signals, season by season.
Season ledgerEvidence
8
dogs died on the Loire in August 2017 after toxic mats surfaced at low water. Thirteen were poisoned.
The Local, 2017
102k
animal illnesses in CDC’s One Health bloom reports for 2022 — usually entered after a bloom ends.
CDC OHHABS
91%
of OneAquaHealth’s monitored urban stream sites had pharmaceuticals detected.
OAH Policy Brief
104M
dogs live in Europe, in a quarter of households. Their owners visit streams every day.
FEDIAF 2022
Responsible by design
Built so a freshwater ecologist and an ethics reviewer can both sign it off. AI drafts words; it never scores risk, decides or publishes. Every rule is deterministic, versioned and shown in full.
Detect toxins or measure water quality
It flags when a professional should look.
Diagnose people or animals
Animal reports are owner observations, never diagnoses.
Collect human illness data
Walkers have no accounts; the phone gets a random ID.
Publish a warning on its own
Every public word passes a coordinator’s explicit approval.
Republish OneAquaHealth data
The public demo runs on labelled synthetic data.
Follow a stream, report what you see in thirty seconds, or open the console to make a decision.