Smoke or chemical inhalation
You should never inhale the fumes. They are very toxic. Should get away from the site
No: it would tend to call urgency into your body's systems to do all that can be done to decrease these toxic levels and increase the oxygen levels. This would considerably increase your breathing.
When it burns gas a gas fire produces hot invisible poisonous fumes that include the odorless gas Carbon Monoxide. Those fumes must be vented to the outside of the building using a good chimney or a properly designed flue pipe otherwise they can easily kill you.If a gas fire is properly set up it should not produce any visible smoke at all so if your gas fire is producing smoke you must urgently call a licensed gas fitter to fix the gas firefor you.If visible sooty smoke comes off a gas fire that could be as dangerous to your health as the normal odorless and invisible fumes produced by a properly set up gas fire which vents them through a proper flue pipe or chimney.
Call your local dump.
Really you should call 911 and wait for toxic waste cleaners to clean it up.
Gas fumes? There should no fumes of any type. If you are speaking about natural or propane shut down the system and vacate the area immediately and call the gas company. If you suspect the ac unit is leaking you should call your heating and cooling service company to check for and repair the leak.
If you mean Scuba tanks, call a dive shop, if you mean emergency breathing tanks, call your local Fire Co.
I would call a vet...
call a doctor
Pulmonologist.
Call 9-1-1.
Call her out!