Lead Paint Chips and Dust
Lead in household dust results from indoor sources such as old lead paint on surfaces that are frequently in motion or bump or rub together (such as window and door frames), deteriorating old lead paint on any surface, home repair activities, tracking lead contaminated soil from the outdoors into the indoor environment, or even from lead dust on clothing worn at a job site.
Even in well-maintained homes, lead dust can form when lead-based paint is scraped, sanded or heated during home repair activities. Lead paint chips and dust can get on surfaces and objects that people touch. Settled lead dust can re-enter the air when the home is vacuumed or swept, or people walk through it. To reduce exposure to lead dust, it is especially important to maintain all painted surfaces in good condition, and to clean frequently, to reduce the likelihood of chips and dust forming. Using a lead-safe certified renovator to perform renovation, repair and painting jobs is a good way to reduce the likelihood of contaminating your home with lead-based paint dust.
Children under six years old are especially at risk from lead exposure. Lead contamination in this age group can go into the bone marrow where it stays for a lifetime. It appears adults and older children do not retain nearly as much lead and it can be reduced when removed from the exposure. If you own an older home and are planning to raise children there we recommend having testing done.
Soil, Yards and Playgrounds
Lead is naturally-occurring, and it can be found in high concentrations in some areas. In addition, soil, yards and playgrounds can become contaminated when exterior lead-based paint from houses or buildings flakes or peels and gets into the soil. Soil may also be contaminated from past use of leaded gasoline in cars, from industrial sources, or even from contaminated sites, including former lead smelters.
Lead in soil can be ingested as a result of hand-to-mouth activity that is common for young children and from eating vegetables that may have taken up lead from soil in the garden. Lead in soil may also be inhaled if suspended in the air, or tracked into your house thereby spreading the contamination.
Check the exterior of your home, including porches and fences, for flaking or deteriorating lead-based paint that may contaminate soil in your yard or be tracked into your house. To avoid tracking contaminated soil into your house, put doormats outside and inside all entryways. If you know or believe there is lead in the soil around your building, remove your shoes before entering.
To reduce exposure to lead, after playing or working outdoors, EPA recommends that children and adults leave their shoes at the door or use door mats, and wash their hands. To keep children from playing in soil near your home, plant bushes and/or grass in yards to reduce the lead exposure risk.
Also, older playground equipment can still contain old lead-based paint, and artificial turf and playground surfaces made from shredded rubber can contain lead. Take precautions to ensure young children do not eat shredded rubber, or put their hands in their mouth before washing them.
EPA Lead Site