Regional haze

{
  "id": "MLC-T-ENV-023594",
  "term": "Regional haze",
  "field": "Environment",
  "term_source": "Regional Haze",
  "definition": "1. Visibility impairment that is caused by the emission of air pollutants from numerous sources located over a wide geographic area. Such sources include, but are not limited to, major and minor stationary sources, mobile sources, and area sources.\n\n2. Visibility impairment that is caused by the emission of air pollutants from numerous anthropogenic sources located over a wide geographic area. Such sources include, but are not limited to, major and minor stationary sources, mobile sources, and area sources.",
  "subject": "Outcomes",
  "references": [
    "40 CFR 51.301 (CFR 2013)",
    "40 CFR 51.301 (CFR 2017)"
  ],
  "url": "https://mlchart.com/terminology/environment/regional-haze/"
}