Edges of ExposureIn the industrialized nations of the global North, well funded agencies like the CDC attend to citizens' health, monitoring and treating for toxic poisons like lead. How do the under resourced nations of the global South meet such challenges? In Edges of Exposure, Nomi Tousignant traces the work of toxicologists in Senegal as they have sought to warn of and remediate the presence of heavy metals and other poisons in their communities. Situating recent