To determine if a worker should go to the primary or secondary evacuation area, what is the first action they should take?

The primary action a worker should take when determining whether to go to the primary or secondary evacuation area is to look up at the windsock or steam event for wind direction. This assessment is crucial because it informs the worker of potentially hazardous wind patterns that may affect their safety. If there is a release of hazardous materials, wind direction can help indicate which areas may be impacted by the dispersion of these materials.

By understanding wind direction, workers can make informed decisions about their movements—whether to proceed to a primary evacuation area that might be compromised or to seek refuge in a secondary area that is safer based on the prevailing conditions. This step takes precedence over checking exit routes or consulting a supervisor, as it directly relates to assessing immediate environmental hazards that could influence evacuation choices.