Does lead exposure in childhood have an effect on violent crime in adulthood?

This dataset compiles environmental lead (Pb) concentration measurements and crime rate indicators across regions ("Comarques") in Catalonia, along with socioeconomic control variables. It is intended to support empirical analysis of the association between chronic lead exposure and antisocial behavior outcomes. Each observation corresponds to a region-year pair, enabling longitudinal and cross-sectional analyses. Variables include ambient lead concentrations (water), homicide and violent crime rates, and demographic controls such as GDP per capita and number of marriages.