Lead Based Paint
The amount of homes containing some lead based paint is in the tens of millions. Most homes built before 1960 contain lead paint. Some homes built as recently as 1978 may also contain lead paint. This paint could be on window frames, walls, the outside of the homes, or other surfaces.

A misconception involving children is eating paint chips from wood that has been painted and is deteriorating is thought to be the main hazard. But, dust and soil are the major routes that contribute to the highest exposure. Lead paint that is good condition, unless it rubs and creates dust, is not a problem.

Lead in Dust or Soil
The potential source of lead based dust comes from the impact and friction with doors and windows. Most homes with interior lead dust have it only on the window wells inside, where the bottom of the window fits when closed. Water and excessive wear causes the lead based paint to deteriorate and become dust particles. When the window is opened the dust them becomes airborne.

Lead in Water
Lead in drinking water also contributes to overall exposure. For an average 2-year-old child, drinking water contributes to approximately 20% of the total lead exposure received. Drinking water contributes from 5% to 50% of total lead exposure, depending on locations and conditions of plumbing.

Lead contamination contributed to plumbing

• Water service mains
• Lead Solder
• Lead plumbing
• Faucets or valves made of brass or bronze

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