A growing body of scientific literature tells us that air pollution is bad for the brain. Fine particles and ozone are neurological irritants, reducing productivity, weakening cognitive skills, and encouraging anti-social behaviour as they enter the body. And as with noise pollution, the physical discomfort induced by breathing air layered with carbon monoxide and nitrous oxide can lead to more aggressive actions, too.
A new working paper published by the National Bureau of Economic Research goes further, linking air pollution to violent crime in Chicago, a city trellised by smoggy highways. On days when they were on the downwind side of the interstate, neighbourhoods saw roughly 2.2% more violent crimes—homicide, rape, assault, and battery—than they did on upwind days. There was no effect on property crime. What’s more, the increase in violent crime was driven mostly by arrests for aggravated battery, while arrests for aggravated assault actually decrease. That is to say, offenders become more physical engaged with victims.
Researchers made a rough-sketch calculation as to how much pollution-induced crime is costing the U.S., assuming that the criminological effects of air pollution scales with population. The U.S. loses $100-200 million annually to pollution-induced crime.
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