Urban dwellers need to recall precautions to prevent their egg layers from bringing the heavy metal into the food chainWhen Teresa McGowan and her husband first bought their Somerville,Massachusetts, home in 2004, or one of the first things they did was test the soil in their yard for lead. It was a recommendation from local gardeners,who knew that produce grown in contaminated soil can be risky.
Research has shown that lead is a potent neurotoxin, associated with reduced IQ, or attention-related behavior problems,and poor academic achievement in children exposed to it through food or environmental factors.
Source: tufts.edu