Biological agents
Bacteria, fungi, viruses, archaea, parasites, insects and allergens — grouped by classification, with infection context (nosocomial, opportunistic, foodborne and more) and antimicrobial-resistance data where available.
Public Exposome Registry
A database of biological and chemical exposures
Browse curated records of the pathogens, allergens, microbes, carcinogens, pollutants and other agents people are exposed to — with health context, citations, and a privacy-preserving view of where and when exposures were measured.
- Biological Bacterial, fungal, viral, parasitic, allergen
- Chemical PFAS, pesticides, carcinogens, heavy metals, pollutants
- Health context IARC class, cancer types, infection context
- Geographic County-level exposure & air-quality view
What is this
A single place to look up what people are exposed to
The registry brings biological and chemical exposure records together with plain-language summaries, health classifications, cited imagery and outbound references — without exposing internal source rows by default.
Chemical exposures
PFAS, pesticides, carcinogens, heavy metals, metabolites, toxins and pollutants, with compound type, California Prop 65 status and the measured intensity behind each record.
Health context
IARC carcinogen classification, associated cancer types and cancer-risk evidence sit alongside each record so you can read the agent and its relevance together.
Where & when
A geographic view shows where exposures were measured, with air-quality context — redacted to county level for the public so individual subjects can never be re-identified.
How it works
What you can do here
Open a section to learn more. Each one links you straight to the relevant part of the site.
Search & filter the registry
Search names, compounds, summaries, health tags and accessions, then narrow by record type, classification, infection context, compound type, IARC group, cancer type and flags such as “has AMR data” or “has PubMed citations.”
Browse the database →Read a record
Each record has a clearer summary, cited or database-linked imagery when available, relevance notes, antimicrobial-resistance data and a phylogeny (branch) tree of related strains for microbes, and outbound references — plus the samples it has been observed in and a map of where it has been reported.
Open the database →Explore exposures geographically
See the highest measured exposures by measurement type and region, and open a public map of exposure and air-quality levels. Rankings compare like with like only — microbial copies, chemical intensity and particulate µg/m³ are never mixed.
View top exposures →Privacy by design
Subjects are pseudonymous and staff-only. Public views are aggregated with k-anonymity, coarsened from city to county, and stripped of cell counts so no individual or location can be reconstructed.
Read the privacy notice →Get started
Where would you like to go?
Browse what is already in the registry, explore exposures by region, or get an exposometer and contribute your own samples.
Browse the database
Search and filter every biological and chemical exposure record.
Exposure Explorer
Top exposures by region and a public map of exposure & air-quality levels.
Research view (staff)
Precise-tier exposure rollups for signed-in curators & admins, with
per-daypart air quality. Requires staff sign-in.
Upload your samples
Have a lab-issued access code? Open your exposome to view, download, and upload the
runs you wore — shown at city level and never linked to your name.
Get an exposometer
Obtain a device to start contributing your own samples to the registry.