Level I Concentrations for the Environmental Threat

{
  "id": "MLC-T-ENV-015651",
  "term": "Level I Concentrations for the Environmental Threat",
  "field": "Environment",
  "definition": "Level I concentrations are established in samples in which the concentration of at least one hazardous substance meets the criteria for an observed release and is present at or above the appropriate ecological - based benchmark level (i.e., the appropriate EPA ambient water quality criteria (AWQC) or EPA ambient aquatic life advisory concentrations (AALAC) for the substance). Because AWQC and AALAC apply only to surface water samples, Level I concentrations can only be established based on aqueous samples. The I and J indices (see HRS section 2.5.2) do not apply because there are no screening concentration benchmarks for sensitive environments.",
  "subject": "Health and safety",
  "references": [
    "Hazard Ranking System Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/level-i-concentrations-for-the-environmental-threat/"
}