[Exposure talc effects on lung function: longitudinal study on variability of respiratory parameters in talc workers].

: The study analyzes the variability of respiratory parameters in 59 workers exposed to talc at least 5 years. Cigarettes smoke seems to be the only one variable causing a FEV1 decrease while cumulative exposure doesn't influence any variable analyzed. The talc dust exposure below TLV ACGIH value has not effects on lung function. The function alterations showed are not correlated to task and to cumulative exposure.