Identify potential risks and hazards in the environment?

Chemical in chemical plants. liquid fuel's in Large plants where fuel is being made from oil. Gas's Non liquid are either being made from oil at refinery's or transferred to tanks in other parts of property's for sale. Plastic's either in refinery's or Plastic Pipe Company's where plastic pipe is being formed. large crushing noise's from crushing plastic pipe to be used to reform new plastic pipe. Loud shrilling noise's inside or accidently outside in open populated areas. Mike