From the Centers for Disease Control and Prevention. Occupational exposures to air contaminants at the World Trade Center disaster site--New York, September-October 2001.
D000393:Air Pollutants; D000401:Aircraft; D004190:Disasters; D005107:Explosions; D015386:Hazardous Substances; D006801:Humans; D009519:New York City; D016273:Occupational Exposure; D018635:Rescue Work; D023481:Terrorism
D000393:Air Pollutants; D015386:Hazardous Substances