LEAD The National Institute of Environmental Health Sciences following health problems NIH: What is Lead? NIH: What is Lead? lead exposure on the NIEHS website most common sources of lead exposure in the US U.S. National Institute of Environmental Health Sciences U.S. National Institute of Environmental Health Sciences Lead Lead http://www.niehs.nih.gov/health/topics/agents/lead/index.cfm U.S. National Institute of Environmental Health Sciences U.S. National Institute of Environmental Health Sciences Lead LEAD Lead U.S. National Institute of Environmental Health Sciences lead exposure on the NIEHS website numerous health problems National Institute of Environmental Health Sciences Lead poison research National Institute of Environmental Health Sciences National Institute of Environmental Health Sciences NIH: What is Lead? U.S. National Institute of Environmental Health Sciences U.S. National Institute of Environmental Health Sciences National Institute of Environmental Health Sciences Lead Lead Lead U.S. National Institute of Environmental Health Sciences Lead U.S. National Institute of Environmental Health Sciences http://www.niehs.nih.gov/health/topics/agents/lead/index.cfm U.S. National Institute of Environmental Health Sciences Lead National Institute of Environmental Health Sciences National Institute of Environmental Health Sciences: Lead http://www.niehs.nih.gov/health/topics/agents/lead/index.cfm National Institute of Environmental Health Sciences NIEHS Lead lead U.S. National Institute of Environmental Health Sciences National Institute of Environmental Health Sciences: Lead Lead NIEHS lead topics page U.S. National Institute of Environmental Health Sciences Lead U.S. National Institute of Environmental Health Sciences lead can only be transferred through ingestion most common sources of lead exposure National Institute of Environmental Health Sciences: Lead