Exposure to dangerous levels of lead was extensive for long stretches of the twentieth century (Feigenbaum and Muller, 2016;Troesken, 2006). Although environmental reforms such as the bans on lead in gasoline and paint in the 1970s were deemed victories for public health at the time (Markowitz and Rosner, 2013;Needleman, 2004), lead toxicity is far from a hazard of the past. High levels of lead have recently been found in thousands of cities in the United States (Pell and Schneyer, 2016) and in both developed and developing countries around the world (Tong, von Schirnding, and Prapamontol, 2000).