- Food packaging industry,
- Plastic bottle/bottling industry
Diocetyl phtalate, Phthalic anhydride, PVC.
Incidence: much greater amongst smokers. IgE-dependent mechanism.
In firemen exposed to large quantities of PVC combustion products, RADS (Reactive airways dysfunction syndrome or asthma caused by irritants – Brooks syndrome) may occur. The long term effects may involve chronic bronchitis. Smoking is clearly an aggravating factor.
Heat-sealing of plastic packaging materials (e.g. in food packaging).
The pathology is also known under the name of meat packer's illness.
Production line work in the manufacture of plastic bottles.
Cough, expectoration and asthma symptoms initially associated with work then becoming persistent elsewhere. Rhinitis and irritative conjunctivitis with headache. Possibility of acute asthma.
Skin prick test or IDR with PA-HSA; scratch test 6.8x10-3 mol/l.
Immunological assay: PTRIA with PA-HSA or PA-BSA, RAST/CAP RAST with phthalic anhydride.
Bronchial provocation test (in hospital).