Defensible science meets rapid computation. Quantify cancer risk, acute hazards, and pollutant dispersion with auditable precision.
LSARS transforms static permit data into dynamic, auditable health risk assessments. Our Human-AI approach establishes a transparent baseline for both regulators and communities.
Baseline Analysis

We combine AI processing with expert verification to map cancer risk, social vulnerability, and financial burden across communities. This creates a defensible "ground truth" for all stakeholders.
Cancer Risk
175.7
per million
Financial Burden
$15.29M
Lifetime EFB
Scenario Modeling

Upload permit PDFs to instantly analyze specific "hotspots." Compare scenarios to see how operational changes impact the Maximum Exposed Individual Resident (MEIR) and overall hazard indices.
MEIR Score
5.58
Max Exposure
Point of Impact
7.94
Hazard Index
This transparent, auditable risk data directly feeds our AI inference engine, enabling real-time "What If" scenarios for economic and health outcomes.
Seamless integration with EPA AERMOD dispersion models for regulatory-grade output.
Strict adherence to OEHHA and CARB risk assessment methodologies.
Analysis of inhalation, soil ingestion, dermal absorption, and mother's milk pathways.
Every calculation is versioned and traceable to the specific source permit data.
Use HRA outputs to drive strategy, communication, and faster permit decisions.
Compliance hubs and guides
The LSARS HRA engine powers every one of these compliance and use case pages. Pick the one that fits your work.
Same EPA AirToxScreen and SDOH layers EJScreen used, after EPA discontinued public access in February 2025.
Cloud-native alternative to CARB HARP2 desktop, parity-validated to five significant figures.
Air Toxics Hot Spots HRA workflow for California facility filings.
OEHHA 2015 methodology for California EIR work, construction and operational phases.
Refinery and AB617 fenceline data bridged to HRA-grade exposure math.
How to use the dataset for production permit and HRA work, beyond screening.