What is lurking in urban backyards?
In backyards and community gardens across Chicago and large cities alike, growers tend fruit and vegetable crops as diverse as the city they live in. Most have one thing in common – lead lurking in the soil.
Legacy lead, leftover from paint, gasoline, and other sources, lingers in the environment. Lead poisoning is a health concern for children and may cause delayed brain development. In high-risk areas, playing in mud puddles, running through dusty yards, and helping in the family garden can expose children to lead in the soil.
Environmental agencies nationwide have different standards for what soil lead levels are a risk to human health. The Illinois Environmental Protection Agency follows the federal EPA rate of 400 ppm, while the California EPA has a more cautious rate of 80 ppm.
Explore lead in soils through the Chicago Soil Research project, good growing practices to reduce lead exposures, and additional management practices based on soil lead concentration.