Dermatitis in a particleboard manufacturing facility

Exposure to wood dust and other chemicals used in particleboard manufacture may cause contact dermatitis. To assess the prevalence and nature of skin complaints in the refining and drying department of a particleboard manufac turing facility following introduction of a new process, workers were asses sed by a physician, using a standardized questionnaire concerning symptoms, past and family history, workplace exposures, and use of protective equipm ent. Cutaneous examination and patch testing were then performed. Questionn aire results showed that workers complained of rash, nasal and eye irritati on, as well as cough and bothersome odours. Cutaneous examination identifie d a heterogeneity of skin problems, with dermatitis being mainly irritant r ather than allergic. Quaternium-15 (Dowicil 200) was the only allergen to w hich more than 1 individual reacted. Aside from the odours, exposure to woo d dust could account for the other reported symptoms. Allergic reactions on patch testing were few and did not explain the dermatitis; most skin react ions were irritant. Recommendations to the company included improved dust c ontrol, through ventilation and personal hygiene measures, as well as prote ctive clothing. The investigation highlights how the introduction of a new process may focus attention on health complaints that have been present for some time before.