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Not sure if materials in your possession are hazardous? A careful look at the description on the label will tell you.

Look for these Signal Words

  • Toxic
  • Warning
  • Caution
  • Flammable
  • Corrosive
  • Reactive
  • Danger

Hazardous Material Has One or More of These Characteristics


Potential to migrate in soil and water and accumulate to concentrations that can harm humans, animal life and plant life (mercury, chlordane, DDT, PCB capacitors)


Can readily catch fire and sustain combustion (solvent paints, cleaners, gasoline)


Acidic or basic (high or low pH level) and can corrode or dissolve metal or other materials (strong acids used in drain cleaners and battery acid)


Readily explodes or undergoes a violent reaction when mixed with other materials such as water or is shock sensitive (pool chemicals, chlorine bleach, and break fluid)

NOTE: Defined by the US Environmental Protection Agency under the Resource Conservation Recovery Act