Plastic Toys
The use of lead in manufacturing children's toys has not been banned. Lead makes plastic more flexible and stabilizes molecules exposed to heat. According to the CDC, children are exposed to the lead in plastic toys when the bond between the lead and plastic break down and become dust. This happens as a result of coming into contact with air, sunlight and detergents.
Imported Toys
Many countries have not banned the use of lead, and as a result many toys that are manufactured in foreign countries contain lead, especially those toys manufactured in China, according to the American Academy of Pediatrics. Not only do a number of imported toys contain lead, the level of lead in these toys often far exceeds the US safety standard.
Older Toys
Antiques, collectibles and toys handed down through several generations are likely to contain lead. Many toys that were manufactured before the 1978 ban were painted with lead paint. In older plastic toys, the bond between the lead and plastic may have broken down over the years, making it much easier for a child to come in contact with the lead.
Warning
If your child has been playing with a toy that contains lead, take the toy away immediately and consult your healthcare provider. The Colorado Department of Public Health and Environment notes that children with lead in their blood may not exhibit any symptoms, so a blood test is the only way to know. Children who frequently put toys in their mouths may be at a higher risk for lead contamination.