|Galena, the main ore of lead. Click for photo credit.|
Mielke is the Rachel Carson of lead. He has been front and center in making the case that low levels of lead cause subtle cognitive and behavioral problems. His work has demonstrated, in part, that areas with high lead levels tend to have higher crime rates. Since I started following his work in the 1980's his work has been demonized by the lead industry. It reminds me how Rachel Carson was called a "hysterical woman" by the chemical industry after she published Silent Spring.
The article is worth a read and it is an interesting approach. Lead clearly has an impact on behavior and Mielke and others believe that the main reason behind falling crime rates is the reduction of lead around us.