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When analyzing a hazardous materials incident at the awareness level you are responsible for recognizing the presence of hazardous materials.
One way of describing a "hazardous materials incident" would be "an accident where hazardous materials are present." However, many people are uncomfortable with the use of the word "accident" which implies an unplanned event that could not have been avoided. That is why the word "incident" is used in the first place. It does not carry any implication of inevitability.
Prepare for one.
yes
Stay upstream, uphill, and upwind.
Developing an emergency plan for hazaardous materials incidents, regulating hazardous materials transportation through local ordinances and regulating safe disposal of hazardous waste
green
green
It is important to survey the scene from a safe distance.
To find protective distances if there is no fire at a hazardous materials incident, refer to the green section of the North American Emergency Response Guide.
Depending on the nature of the hazardous materials incident, the weather, and the buildings in which people may be located, sheltering in place may be an appropriate option. Then again, it may not.
Upstream, uphill, and upwind