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Giornale Italiano di Medicina del Lavoro ed Ergonomia

[Professional exposure to hardwood dusts in a group of Sicilian joiners].

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Wood is a system of vegetable tissues chemically formed by biopolymers (90-99%) and phenolic substances, alkaloids, glucosides and saponins (1-10%). There are two botanical groups of wood: hardwood and softwood. Aim of present study was the research of possible work related diseases with professional exposure to hardwood about 25 joiners of Palermo in 2006; in fact wood dust inhalation is very dangerous for workers health because it is cancerogenous for nasal and paranasal sinus (1 IARC). We studied beech and fraxinus dusts (hardwood) and mahogany and teak dusts (exotic hardwood) in the environmental air of joiners during wood cutting and finishing touch. We also analysed exposed workers registry to know joiners duties, exposure values to wood dust, inhalatory exposure, wood type, chemical components, individual protection safety devices, environmental protection means. Then we examined workers medical case and risk histories. At the end we noticed that particle material in environmental air was regular according law reference values (D.Lgs. 66/2000: TLV-TWA 5 mg/m3); but although environmental dust values were normal, we found nasal haemorrhages in 3 workers and vasomotory headache in other 3; we also diagnosed one paranasal sinus polypus and then irritative contact dermatitis in 3 workers. So there is an answer: "can current TLV-TWA be protective and sure? And can it guarantee health of hardwood exposed workers?".

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