Tiers and Types

{
  "id": "MLC-T-ENV-028125",
  "term": "Tiers and Types",
  "field": "Environment",
  "definition": "Exposure scenarios can be developed to support different tiers and types of exposure assessments. Individual “tiers” correspond to iteratively more complex, and typically data-intensive, steps in the assessment. At each stage of a tiered exposure assessment, investigators evaluate whether the assessment results are sufficient to support the risk management decisions. The type of assessment might refer to whether the assessment is considering aggregate or cumulative exposures or whether is at the individual or population level.",
  "subject": "Chemicals, toxics and pesticides",
  "references": [
    "EPA ExpoBox Terminology"
  ],
  "url": "https://mlchart.com/terminology/environment/tiers-and-types/"
}