Definition - What does First Exposure Symptom mean?
A first exposure symptom, in the context of safety, can be defined as the first reaction that is shown by the individual when he or she is first exposed to a chemical, toxin or radiation.
Safeopedia explains First Exposure Symptom
The effects of a particular chemical or exposure to other dangerous subtances and effects depends on the level of exposure. First exposure symptoms are one way of determining how much exposure a person has received and what sort of treatment may be required.
This definition was written in the context of Safety