Nitrogen

{
  "id": "MLC-T-ENV-018639",
  "term": "Nitrogen",
  "field": "Environment",
  "definitions": [
    "1. A type of nutrient that contributes to the Bay's poor water quality. While nitrogen is needed for plant growth, human activities--like driving cars or applying fertilizers--contribute more nitrogen than the Bay's waters can handle. Elevated nitrogen levels cause more algae to grow, blocking out sunlight and reducing oxygen for fish, crabs and other Bay life.\n\n2. An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.\n\n3. Type of nutrient that contributes to the Bay's poor water quality. While nitrogen is needed for plant growth, human activities--like driving cars or applying fertilizers--contribute more nitrogen than the Bay's waters can handle. Elevated nitrogen levels cause more algae to grow, blocking out sunlight and reducing oxygen for fish, crabs and other Bay life.\n\n4. An element occurring in manure and chemical fertilizer that is essential to the growth and development of plants, but which, in excess, can cause water to become polluted and threaten aquatic animals.",
    "(pollutant category) Pollutant grouping that includes parameters for total nitrogen, organic nitrogen, total Kjeldahl nitrogen, nitrite, nitrate, and ammonia.",
    "(pollutant category) All parameters for total nitrogen, organic nitrogen, total Kjeldahl nitrogen, nitrite, nitrate, and ammonia are included. Section 3.1.3 of the Technical Users Background Document for the Water Pollutant Loading Tool describes how the Loading Tool identifies nitrogen parameters and aggregates nitrogen loads. Search Considerations: The Loading Tool selects pollutant loadings for the Nitrogen category if the loadings are associated with parameter codes in ICIS-NPDES that are on the nitrogen list. This list is available in the Technical Users Background Document for the Water Pollutant Loading Tool. These data are from ICIS-NPDES."
  ],
  "abbreviation": "N",
  "subject": [
    "Chemical substances",
    "Water",
    "Enforcement and compliance"
  ],
  "references": [
    "Chesapeake Bay Glossary",
    "NLM Medical Subject Headings (MeSH)",
    "NPS Agriculture Glossary; Nonpoint Pollution Source from Agriculture Glossary",
    "Effluent Limitations Guidelines (ELG) Glossary",
    "Glossary of Frequent Terms in the Loading Tool"
  ],
  "url": "https://mlchart.com/terminology/environment/nitrogen/"
}