UNIT TWO. Understanding Hazardous Materials. Potential Outcomes TRACEM. Thermal (Fire and/or Explosion) Radiological Asphyxiation (Oxygen Deficiency) Chemical exposure Etiological (Biological Hazards) Mechanical. Thermal (Fire and/or Explosion).
Understanding Hazardous Materials
Alpha - Most damaging, but least penetrating
Hazard – Internal
Shielding – Paper, dead layer of skin, travels 1 to 2 cm in air
Beta- Small particle; low penetration
Hazard - Primarily external, but also internal
Shielding - Plastic, safety glasses, travels several feet in air
Gamma / X - Highly penetratingHazard - External - most external dose due to gammaShielding - Lead, steel, concrete, thick layers of water
Example of the penetrating power of the various types of ionizing radiation
The symptoms of these exposures can range from a runny nose to rapid death and are considered to be available to terrorist groups worldwide.
Treatment only after emergency decon
If a rescue is attempted and is successful
with copious amounts of water
responders to arrive
THE RESCUER NOW BECOMES A VICTIM BECAUSE OF UNKNOWN HAZARD EXPOSURE!!!