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Could the air onboard your next flight be toxic? the ventilation air comes through the engine, and it could contain neuro toxics that seek into the cabin. i will turn the air monitor on, and for 90 minutes its going to sample the air. tauxens in the air would leave residue on services of the cabin, so i am swabbing here to bring samples back to the laboratory, to determine if there have been toxins in the air here. they study the quality of the air onboard for years. he places the air filter and...

Result in engine oil mist containing neurotoxins to seep into the cabin. im turning the air monitor on. for 90 minutes its going to sample the air. toxins in the air would lead residue on surfaces of the cabin. so im swabbing here to bring samples back to the laboratory so we can determine if, indeed, there have been any toxins in the air here. >> lets have a look. >> toxicologist chris van netten has studied air on board airplanes for years. van netten places the air filter and alcohol swabs in...

>> reporter: this toxicologist at the university of british columbia has studied air quality on board planes for years. >> youll take this out very carefully. >> reporter: he places the air filt and alcohol swabs into test tubes. his research associate adds solvent to extract whatever chemicals our samples captured. they also analyzed some of producer laura dolans hair to see if it collected toxins from her seat belt cushion. he runs it through a mass spectrometer, a device that measures molecul...

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Whom we try to establish whether a substance is carcinogenic via than out of ten carcinogenic substances available before only one will genuinely cause cancer in humans so those results are unsettling because a range of substances that would be important in combating illnesses never reach patients because theyve already been eliminated in animal tests that have no relevance for us it began as one of. the alternative is to work with human cells in b. truck in test tubes. the cells here form tiny ...