Terrestrial vegetation biogenic emission

{
  "id": "MLC-T-ENV-027843",
  "term": "Terrestrial vegetation biogenic emission",
  "field": "Environment",
  "term_source": "Terrestrial Vegetation Biogenic Emission",
  "definition": "1. (Emission of Biogenic Hydrocarbons which are) naturally occurring compounds, including VOCs (volatile organic compounds) that are emitted from trees and vegetation. High VOC-emitting tree species such as eucalyptus can contribute to smog formation. Species-specific biogenic emission rates may be an important consideration in large-scale tree plantings, especially in areas with high ozone concentrations.\n\n2. Biogenic emissions are emissions from natural sources, such as plants and trees. These sources emit formaldehyde, acetaldehyde and methanol as well as large quantities of other non-HAP VOCs. Formaldehyde and acetaldehyde are key risk drivers in NATA. Biogenic emissions are typically computed using a model which utilizes spatial information on vegetation and land use and environmental conditions of temperature and solar radiation. In addition to being a primary source of HAP, other VOCs emitted by Biogenic sources react with anthropogenic VOCs and NOX to produce secondary formed HAPs. The NATA biogenics source group includes only the primary emissions.",
  "subject": "Environmental events",
  "references": [
    "Heat Island Effects Glossary",
    "National Air Toxics Assessment (NATA) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/terrestrial-vegetation-biogenic-emission/"
}