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Environmental Health Lab Unit

Label an explicit environmental laboratory value, unit, and sample matrix without assessing a safety threshold.

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Description

Label an environmental-health result with its supplied unit and matrix.

Environmental-health records connect sampled matrices, background references, observed areas, service dates and contact durations. An areal loading differs from a bulk or airborne concentration, and a censored result label differs from a quantified value. These summaries do not establish safe conditions or individual health risk.

Label an environmental-health result with its supplied unit and matrix.

When to use this tool

Use Environmental Health Lab Unit when checking the stated environmental-health record, measurement basis or time convention.

How to use the tool and how it works

  1. Enter resultId, value, unitText, matrixWording. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read label. Use the output convention below.

Require nonempty result ID, unit text and matrix wording. Format result; signed value units [matrix].1

Input fieldMeaning and unitsAccepted input
resultIdResult IdRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
valueValueRequired. Finite number.
unitTextUnit TextRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
matrixWordingMatrix WordingRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
Output fieldInterpretationReturned shape
labelFormatted supplied record wording; no independent validation of its substantive meaning.Required. Text; maximum UTF-16 length 8192.
json
{
  "input": {
    "resultId": "R17",
    "value": 2.5,
    "unitText": "ug/L",
    "matrixWording": "water"
  },
  "output": {
    "label": "R17; 2.5 ug/L [water]"
  }
}

Limitations and assumptions

  • The unit and matrix are not validated and no environmental threshold, clinical interpretation or laboratory result quality is assessed.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use verified sampling and analytical records with qualified environmental-health professionals for actual exposure, remediation, water-quality or care decisions.

References

  1. Calculation and input contract: environmental-health/environmental-health-lab-unit — tool.io

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