title: Bystanders at risk of lead absorption.
mesh_terms: D004781:Environmental Exposure; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000517:prevention & control*; D008669:Metallurgy; D011524:Protoporphyrins / Q000097:blood; D011890:Railroads
chemical_list: D006454:Hemoglobins; D011524:Protoporphyrins; D007854:Lead