Urban

{
  "id": "MLC-T-ENV-029283",
  "term": "Urban",
  "field": "Environment",
  "definition": "1. High population density, >390 people per square kilometer [Original source: Humbert et. al, 2011, pg. 4811].\n\n2. 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": "Air",
  "references": [
    "Federal LCA Commons Elementary Flow List for Life Cycle Assessment",
    "AirToxScreen Glossary of Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/urban/"
}