Narrative:

After demo while getting seated in jump seat; cabin began to fill will unusual and extreme exhaust. I called the pilots to ask if they could do anything right away 'assuming' either they were not keeping the appropriate distance from the aircraft in front of them and or they did not have the proper fan/ventilation system on or an adjustment was needed. I told them it was really bad. Assuming if I called right away it would get adjusted and corrected. Assuming it was not mechanical related.we had to get de iced and took a 'while' to taxi and wait in line for our turn. It got so bad I was almost to a breaking point where I was going to need oxygen; I was dizzy. Felt light headed. The other crewmembers upfront also had to call because they were symptomatic. If this was not a mechanical issue which if it were it will continue for the remainder of the day I implore you to look at airport taxing footage to see if the proper distance was given. Something was not right. The pilot stated that they did not have any exhaust in the cockpit. And how can the pilots adjust or correct something if they have separate air. Or maybe they don't care because they are not exposed to the same air. This issue has to stop. The cause needs to be addressed. Harm is being done to passengers and crew. After take off it took a solid 30 minutes and multiple calls to clear the cabin due to the heavy saturated toxic air.preventative measures: enforcing ground spacing at all locations and spacing rules being complied with not only with pilots but air/ground control while jockeying planes on tarmac take off. No exceptions. Ensure pilots have the proper ventilation and fans on during taxi and know how to use them to prevent this. And to know how to quickly correct it vs. Fumigation of passengers and crew until 30min into cruise.

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Original NASA ASRS Text

Title: Flight attendant reported a fume event during taxi that dissipated after takeoff.

Narrative: After demo while getting seated in jump seat; cabin began to fill will unusual and extreme exhaust. I called the pilots to ask if they could do anything right away 'assuming' either they were not keeping the appropriate distance from the aircraft in front of them and or they did not have the proper fan/ventilation system on or an adjustment was needed. I told them it was really bad. Assuming if I called right away it would get adjusted and corrected. Assuming it was not mechanical related.We had to get de iced and took a 'while' to taxi and wait in line for our turn. It got so bad I was almost to a breaking point where I was going to need oxygen; I was dizzy. Felt light headed. The other crewmembers upfront also had to call because they were symptomatic. If this was not a mechanical issue which if it were it will continue for the remainder of the day I implore you to look at airport taxing footage to see if the proper distance was given. Something was not right. The pilot stated that they did not have any exhaust in the cockpit. And how can the pilots adjust or correct something if they have separate air. Or maybe they don't care because they are not exposed to the same air. This issue has to stop. The cause needs to be addressed. Harm is being done to passengers and crew. After take off it took a solid 30 minutes and multiple calls to clear the cabin due to the heavy saturated toxic air.Preventative Measures: Enforcing ground spacing at all locations and spacing rules being complied with not only with pilots but air/ground control while jockeying planes on tarmac take off. No exceptions. Ensure pilots have the proper ventilation and fans on during taxi and know how to use them to prevent this. And to know how to quickly correct it vs. fumigation of passengers and crew until 30min into cruise.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.