Practice 10 · Expert-led consulting
EPA Human Health & Environmental Risk Assessment
EPA-aligned human-health risk assessment: hazard identification through risk characterization.
Independent human-health risk-assessment consulting using EPA-aligned scientific methodology — hazard identification, dose-response, exposure assessment, and risk characterization for site-, chemical-, occupational-, and product-related HHRA. Multi-pathway and aggregate exposure across dermal, inhalation, and oral routes; drinking-water, soil, dietary, and air pathways where applicable. Scientific interpretation of authoritative EPA toxicology information (IRIS, PPRTV, Regional Screening Levels, Exposure Factors Handbook). Aᴳ is not EPA and does not act on EPA’s behalf.
Scope of engagement
Aᴳ provides independent scientific consulting using EPA-aligned human-health risk-assessment methods and interprets authoritative EPA toxicology information (IRIS, PPRTV, RSL, Exposure Factors Handbook). Aᴳ is not EPA, does not act on EPA’s behalf, does not issue EPA regulatory decisions, and does not operate live EPA database integrations on this website.
Services
What Aᴳ delivers.
- Human-health risk assessment (site · chemical · occupational · product)
- Hazard identification
- Dose-response assessment
- RfD / RfC / POD / BMDL derivation & review
- Exposure assessment (dermal · inhalation · oral)
- Multi-pathway & aggregate exposure
- Drinking-water · soil · dietary · air pathways
- Acute & chronic exposure scenarios
- Sensitive populations & lifestages
- HQ · HI · MOE
- LADD & cancer-risk characterization
- Uncertainty analysis
- Application of IRIS / PPRTV / RSL / EPA Exposure Factors Handbook values
- TSCA-related toxicology support
- Weight-of-evidence evaluation
- Read-across & data-gap assessment
Industries served
- — Industrial Chemicals
- — Consumer Products
- — Environmental
- — Sustainability Programs
- — Chemical Stewardship
Applicable regulations
- — EPA-aligned scientific methodology
- — TSCA
- — FIFRA
- — CERCLA
- — IRIS · PPRTV · RSL · Exposure Factors (interpretation)
Related ToxIntel capability
HHRA & Aggregate-Exposure workflows
ToxIntel is Aᴳ’s enterprise scientific safety intelligence platform — a distinct product that supports, but does not replace, the consulting practice.
Engage the practice
Talk to an independent toxicologist about your epa human health & environmental risk assessment question.
Send a short brief — product, jurisdictions, timeline, and the scientific question that prompted the call. We respond within two business days.