Typical person

{
  "id": "MLC-T-ENV-028935",
  "term": "Typical person",
  "field": "Environment",
  "term_source": "Typical Person",
  "definition": "Describes a hypothetical person living at the census-tract centroid (defined as a reference point that is usually but not always located at the geographic center of a census tract) and engaging in a range of activities (indoors and outdoors) that are representative of those in which individuals residing in that tract might engage. To characterize the risk that this person might experience, NATA divides the population as a whole into cohorts (groups who are assumed to have identical exposures during a specified exposure period) based on where they live, how old they are, and what their daily-activity patterns might be. For each combination of residential census tract, age, various age-appropriate daily-activity patterns are selected to represent the range of exposure conditions for residents of the tract. A population-weighted typical exposure estimate is calculated for each cohort, and this value is used to estimate representative risks for a \"typical\" individual residing in that tract.",
  "subject": "Biological substances",
  "references": [
    "National Air Toxics Assessment (NATA) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/typical-person/"
}