Urban area

{
  "id": "MLC-T-ENV-029284",
  "term": "Urban area",
  "field": "Environment",
  "term_source": "Urban Area",
  "definition": "1. Collective term referring to all areas that are urban; including urbanized areas and urban clusters.\n\n2. Consistent with the definition EPA used in the analyses to support the Integrated Urban Air Toxics Strategy, a county is considered \"urban\" if it either includes a metropolitan statistical area with a population greater than 250,000 or the U.S. Census Bureau designates more than 50 percent of the population as \"urban.\" Note that this definition does not necessarily apply for any regulatory or implementation purpose.\n\n3. A county is considered \"urban\" if it either includes a metropolitan statistical area with a population greater than 250,000 or the U.S. Census Bureau designates more than 50 percent of the population as \"urban.\"",
  "subject": "Built environments",
  "references": [
    "U.S. Census Bureau American FactFinder Glossary",
    "National Air Toxics Assessment (NATA) Glossary",
    "AirToxScreen Glossary of Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/urban-area/"
}