A320
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Deck / Cabin / Aircraft Event Illness / Injury; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Flight Crew Overcame Equipment Problem
Aircraft
Fume event. APU bleed was off during event. The smell; a sweet chemical odor; was present in the aft third of the aircraft. Passengers and crew in the aft galley and the last five rows of the aircraft exhibited the following symptoms immediately coinciding with the fume event: coughing; sore throat; hoarseness; slight headaches. Pack 2 was isolated and fumes dissipated within 5 minutes. No smoke was present. FAs (Flight Attendants) reported that the passengers were feeling better and no emergency or diversion was required. In hindsight; I should have contacted Stat-MD; but did not because the cabin crew reported that everyone was fine and we were busy deviating around weather and descending through moderate turbulence. Our primary concern was to fly the aircraft safely around the weather. No one wanted medical attention upon landing. After landing; one FA continued to cough; felt dizzy; and had numbness and tingling throughout body. She requested medical attention after deplaning and was subsequently taken to the hospital and removed from the next flight. Possible fumes were momentarily noted on ground when APU bleed was selected upon arrival at gate in ZZZ. At the time; I believed them to be outside agents. The aircraft was not recently de-iced.
A320 Captain reported Flight Attendant and passengers in the aft cabin noticed a chemical odor causing mild head and throat irritation symptoms.