ST. LOUIS, Mo. – The HAZMAT team has been called to the 5700 block of West Park for what has been initially described as an ammonia leak. An ambulance rushed away from the area at around 8:10 am. Other first-responders are also on the scene. Nearby businesses have not been evacuated.
Anhydrous ammonia is used as a fertilizer by field corn and wheat growers. It is a clear, colorless gas. A poisonous, visible vapor cloud is produced from contact of ammonia with water.