Literal elemental lead.<p><a href="http:&#x2F;&#x2F;www.motherjones.com&#x2F;environment&#x2F;2016&#x2F;02&#x2F;lead-exposure-gasoline-crime-increase-children-health" rel="nofollow">http:&#x2F;&#x2F;www.motherjones.com&#x2F;environment&#x2F;2016&#x2F;02&#x2F;lead-exposure...</a>