MLchartDataset catalogue

Least Impaired Days

Term · Environment · MLC-T-ENV-015561

1. Average visibility impairment (measured in deciviews) for the twenty percent of monitored days in a calendar year with the lowest amount of visibility impairment.

2. The twenty percent of monitored days in a calendar year with the lowest amounts of visibility impairment.

Table 1. Record
IdentifierMLC-T-ENV-015561
FieldEnvironment
References40 CFR 51.301 (CFR 2013); 40 CFR 51.301 (CFR 2017)
Record as JSON 
{
  "id": "MLC-T-ENV-015561",
  "term": "Least Impaired Days",
  "field": "Environment",
  "definition": "1. Average visibility impairment (measured in deciviews) for the twenty percent of monitored days in a calendar year with the lowest amount of visibility impairment.\n\n2. The twenty percent of monitored days in a calendar year with the lowest amounts of visibility impairment.",
  "references": [
    "40 CFR 51.301 (CFR 2013)",
    "40 CFR 51.301 (CFR 2017)"
  ],
  "url": "https://mlchart.com/terminology/environment/least-impaired-days/"
}

Record 15,561 of 30,736 in Environment terminology (MLC-0121). Request the full dataset.