ammonium nitrate

The threat from 'fertilizer explosives' in the car of a massacre in Las Vegas
Security forces found 42 guns and explosives in the hotel room and the suspect's house. In addition, US police also discovered large amounts of ammonium nitrate in Paddock's car.
Air pollution increases the risk of premature birth
A large-scale study demonstrated that toxic substances in the air increase the risk of premature birth in women by up to 30%.