- Asbestos containing material (insulated pipe, transite concrete fiber board)
- Live ammunitions/bullets, military target range scrap, explosives
- Radioactive material
- Computer monitors, TVs (cathode ray tubes)
- Acetylene cylinders
- Mercury containing thermometers, thermostats, pressure regulating valves
- Fluorescent light ballasts PCBs
- Flammable or combustible materials
- Glass
- Paper
- Plastic
- Rubber
- Oil
- Lubricants
- Fluids of any kind
- Radioactive materials
- Acid
- Transmissions or engines with visible oil