{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/agency-for-toxic-substances-and-disease-registry/refs/heads/main/json-structure/atsdr-toxic-substance-profiles-substance-priority-structure.json",
  "name": "SubstancePriority",
  "description": "SubstancePriority schema from ATSDR API",
  "type": "object",
  "properties": {
    "rank": {
      "type": "int32",
      "description": "Priority rank on the ATSDR Substance Priority List.",
      "example": 1
    },
    "substance_name": {
      "type": "string",
      "description": "Name of the substance.",
      "example": "Example Name"
    },
    "cas_number": {
      "type": "string",
      "description": "CAS registry number.",
      "example": "example_value"
    },
    "total_score": {
      "type": "double",
      "description": "Composite score used for ranking.",
      "example": 99.99
    },
    "npl_frequency": {
      "type": "int32",
      "description": "Number of NPL sites where substance was found.",
      "example": 1
    },
    "toxicity_score": {
      "type": "double",
      "description": "Toxicity component of the score.",
      "example": 99.99
    },
    "year": {
      "type": "int32",
      "description": "Priority list year.",
      "example": 1
    }
  }
}