Lead Investigations

  • A lead investigation is required when a child under 6 years of age has lead poisoning. (The investigation is optional when a child ages 6 to 16 is lead poisoned.)
  • A blood lead level of 10 micrograms per deciliter (ug/dL) and above but less than 15 ug/dL triggers an investigation in the form of a questionnaire completed by the public health lead investigator. Follow-up actions may include educational materials, a risk assessment or other actions.
  • A blood lead level of fifteen micrograms per deciliter or greater triggers an on-site investigation of a residential unit, child care facility or school by a public health lead investigator.
  • Lead inspection means a surface-by-surface investigation to determine the presence of lead-based paint. ODH has prepared a brochure, Public Health Lead Investigations, for parents.
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