B767 first officer reported enroute diversion due to several flight attendants experiencing symptoms...

Narrative:

During my break; I was woken up notifying me that we were diverting to ZZZZ. Found out [a] number of flight attendants were feeling nauseous; dizziness and sluggish. After entering the cockpit; I also got tingling feeling and headache. Cockpit crew completed smoke; fire or fumes checklist; and overweight landing checklist. Landed and taxied to gate uneventfully. There were no signs of visible smoke or identifiable smell in the cockpit or cabin during the event.after safely arriving on the gate; one of the flight attendants mentioned she might have smelled anti-freeze type smell coming from the chiller. Initially; I thought we might have experienced refrigerant poisoning; the symptoms were similar to symptoms of hypoxia. After maintenance investigation that took two days found a cargo container with shoes and the glue that was used to attach soles was the cause of the symptoms. The chemicals used to manufacture the adhesive should be investigated; and if inhaled; what short and long term effects can we expect. If it's harmful to humans; it should not be carried on passenger air carriers.

Original NASA ASRS Text

Title: B767 First Officer reported enroute diversion due to several Flight Attendants experiencing symptoms similar to hypoxia caused by unknown source. Further investigation by Maintenance determined fumes of cargo shipment of glue and shoes was the probable cause.

Narrative: During my break; I was woken up notifying me that we were diverting to ZZZZ. Found out [a] number of flight attendants were feeling nauseous; dizziness and sluggish. After entering the cockpit; I also got tingling feeling and headache. Cockpit crew completed Smoke; Fire or Fumes checklist; and Overweight Landing checklist. Landed and taxied to gate uneventfully. There were no signs of visible smoke or identifiable smell in the cockpit or cabin during the event.After safely arriving on the gate; one of the flight attendants mentioned she might have smelled anti-freeze type smell coming from the chiller. Initially; I thought we might have experienced refrigerant poisoning; the symptoms were similar to symptoms of hypoxia. After Maintenance investigation that took two days found a cargo container with shoes and the glue that was used to attach soles was the cause of the symptoms. The chemicals used to manufacture the adhesive should be investigated; and if inhaled; what short and long term effects can we expect. If it's harmful to humans; it should not be carried on passenger air carriers.

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.

Attributes
ACN	1571806
Time
Date	201808
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	First Officer
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Illness Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

B767 first officer reported enroute diversion due to several flight attendants experiencing symptoms similar to hypoxia caused by unknown source. Further investigation by maintenance determined fumes of cargo shipment of glue and shoes was the probable cause.