{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/agency-for-toxic-substances-and-disease-registry/refs/heads/main/json-schema/atsdr-toxic-substance-profiles-minimum-risk-level-schema.json",
  "title": "MinimumRiskLevel",
  "description": "MinimumRiskLevel schema from ATSDR API",
  "type": "object",
  "properties": {
    "substance_name": {
      "type": "string",
      "description": "Name of the hazardous substance.",
      "example": "Example Name"
    },
    "cas_number": {
      "type": "string",
      "description": "CAS registry number.",
      "example": "example_value"
    },
    "route": {
      "type": "string",
      "enum": [
        "inhalation",
        "oral",
        "dermal"
      ],
      "description": "Exposure route.",
      "example": "inhalation"
    },
    "duration": {
      "type": "string",
      "enum": [
        "acute",
        "intermediate",
        "chronic"
      ],
      "description": "Duration of exposure.",
      "example": "acute"
    },
    "mrl_value": {
      "type": "number",
      "description": "MRL value (units depend on route).",
      "example": 99.99
    },
    "mrl_unit": {
      "type": "string",
      "description": "Unit of measurement for the MRL value.",
      "example": "example_value"
    },
    "year_updated": {
      "type": "integer",
      "description": "Year the MRL was last updated.",
      "example": 1
    }
  }
}