Lead Pb Problem

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Lead (Pb) Problem
Childhood lead poisoning has been labeled by the
Center for Disease Control (CDC) as the No. 1
Environmental Health Hazard facing American
Children.
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Lead-Based Paint (LBP)
A condition in which exposure to lead from
lead-contaminated dust, lead-contaminated soil,
or deteriorated lead-based paint would have an
adverse effect on human health.
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Lead-Based Paint (LBP)
Source of LBP Hazards Deterioration 82
Remodeling 11 Scraping/sanding paint 11
Mouthing/chewing surfaces 13
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Lead-Based Paint (LBP)

• Where to find?
• I. Exterior
• Porches, railings porch components
• Siding
• Exterior window components
• Exterior doors.
• Bare soil around foundations
• out buildings

5
Lead-Based Paint (LBP)

• Where to find?
• II. Interior
• Window window components
• Trim components
• Bathroom kitchens
• Doors door components
• Varnished components
• Trim components
• Paint/varnished floors

6
Lead-Based Paint (LBP)

• Where to find?
• III. Others
• Garage sheds
• Furniture
• Toys
• Water sources
• Vinyl blinds
• Playground equipment

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How Children Poisoned ?

• I. Routes of Exposure
• Inhalation
• Ingestion
• Paint chips
• Dusts

• II. Health Effects
• Lead routes in the body
• 90 of Pb goes to the bone, i.e. Pb goes where Ca
  goes, can be stored up to 30 years.

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Diet Effect ?

• III. Diet Effects
• Low iron will increase Pb sorption and retention.
• As calcium intake decreases, blood lead level
  (PPL) increases, i.e., Ca inhibits Pb sorption.
• Total fat increase ? BBL increases.
• Vitamin C decrease toxic effects
• of lead by chelating Pb.

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Screening
Required at age 1-2, or 3-5 if not tested
before. Children in Medicare or WIC should be
screened.
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How to inspect for Pb?

• Done by state certified, trained personnel
• Visual inspection look for paint chips
• Wipe samples
• Surface samples
• Chemical spot test

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What to do if Pb Hazards?

• Interim Control
• For temporary controls
• Specialized cleaning
• HEPA-vacuum
• Repainting
• Wet cleaning
• Prevention
• Ongoing monitoring

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What to do if Pb Hazards?

• II. Abatement
• For permanent controls
• Removal
• Encapsulation
• Enclosure
• Replacement