Nonmethane Hydrocarbons Sum

{
  "id": "MLC-T-ENV-018927",
  "term": "Nonmethane Hydrocarbons Sum",
  "field": "Environment",
  "definition": "1. Sum of all hydrocarbon species except methane, as measured according to 40 CFR part 1065.[40 CFR 1036.801 (CFR 2013)][40 CFR 1037.801 (CFR 2013)]\n\n2. Sum of all hydrocarbon species except methane. Refer to 40 CFR 1065.660 for NMHC determination.\n\n3. Meaning given in 40 CFR 1065.1001. This generally means the difference between the emitted mass of total hydrocarbons and the emitted mass of methane.[40 CFR 1033.901 (CFR 2013)][40 CFR 1042.901 (CFR 2013)][40 CFR 1045.801 (CFR 2013)]\n\n4. Meaning given in 40 CFR 1065.1001.[40 CFR 1048.801 (CFR 2013)]\n\n5. Sum of all hydrocarbon species except methane. This generally means the difference between the emitted mass of total hydrocarbon and the emitted mass of methane.",
  "abbreviation": "NMHC",
  "synonyms": [
    "NMHC+NOX"
  ],
  "references": [
    "40 CFR 1036.801 (2023)",
    "40 CFR 1039.801 (CFR 2013)",
    "40 CFR 1054.801 (CFR 2013)",
    "40 CFR 1051.801 (CFR 2013)",
    "86 FR 34308; 40 CFR 1054.801 (CFR 2021)"
  ],
  "url": "https://mlchart.com/terminology/environment/nonmethane-hydrocarbons-sum/"
}