The information on this website is not a substitute for diagnosis and treatment by a qualified, licensed professional. Sociologists have known for a long time that violent crimes occur more in some places than in others. The question is why some places have high crime rates and others don't.
Masters says pollution is part of the answer.
Masters has developed what he calls the neurotoxicity hypothesis of violent crime. These traits combine with poverty, social stress, alcohol and drug abuse, individual character, and other social factors to produce individuals who commit violent crimes. Masters argues that, to be taken seriously, such a hypothesis must pass five tests. Masters cites studies showing that low-level poisoning by lead, and by manganese, is associated with learning disabilities and attention deficit disorder, which are themselves associated with deviant behavior. Masters cites seven other studies showing that violent prisoners have significantly elevated levels of lead, manganese, cadmium, mercury or other toxic metals, compared to prisoners who are not violent.