This website explains what brownfields are and has a number of useful links to information on laws, hazardous waste management, and pictures. The department of Natural Resources is an example of an official, primary source.
Thoracic trauma is a common cause of significant disability and mortality, the leading cause of death from physical trauma after head and spinal cord injury.[1] Blunt thoracic injuries are the primary or a contributing cause of about a quarter of all trauma-related deaths.