Depending on the gas: blindness, affection of the nervous system, tearing, produce vesicles, asphyxiating, apparent death, etc.; don't use acronyms.
Symptoms differ from a chemical to other.
Toxicology
Multiple chemical sensitivity typically begins with one high-dose exposure to a chemical, but it may also develop with long-term exposure to a low level of a chemical.
No.
Level B of civilian chemical equipment are used during an incident involving an unknown hazardous substance
chemical
Chemical
Symptoms differ from a chemical to other.
Burned or reddened skin, nausea, vomiting, and diarrhea, and convulsions may be symptoms of what type of CBRNE exposure
Radiological/Nuclear
Burned skin, shrapnel wounds, blunt trauma injuries and ruptured organs may be symptoms of exposure to explosives.
Biological may be the answer you are looking for. CBRNe stands for agents used for warfare (biological warfare is an example). The acronym stands for Chemical, Biological, Radiological, Nuclear, and the "e" stands for enhanced (improvised) explosives. Biological agents usually are those that cause the symptoms mentioned in the question. However, there are some chemicals that can cause those symptoms from exposure as well, although they are less frequently found.
It really depends on what type of chemical, but some common symptoms could be skin irritation, burning eyes, feeling faint, or difficulty breathing.
Nausea, ...
Prognosis depends on the specific chemical of exposure, magnitude and time of exposure, progression of symptoms (severity), and onset for medical attention.
Chemical
What are the additional miscellaneous support and decontamination supplies used while sampling a chemical biological radiological nuclear or high yield explosives cbrne or suspected cbrne site?Read more: What_are_the_additional_miscellaneous_support_and_decontamination_supplies_used_while_sampling_a_chemical_biological_radiological_nuclear_or_high-yield_explosives_cbrne_or_suspected_cbrne_site