Metallic mercury production from cinnabar ore may result in high exposures to inorganic mercury, that are difficult to assess separately from the exposures originating from underground extraction, and previously have only been scantily described.
We retrieved and analysed the air and biological mercury determinations on workers involved in the smelting process of the Abbadia San Salvatore mine (Monte Amiata, Italy).
Native mercury was not present in the ore, and the exposure in the underground extraction was low.
The smelter operated from 1897 to 1983.
Blood and urine (24/h urine collections and concentration samples) had been sampled in 1968 to 1982, and analysed for mercury by atomic absorption spectrophotometry, and relate to all subjects.
Exposure to mercury in air had been determined in a small set of personal samples in 1982.
The data relate to all jobs in the smelter process, and all jobs entailed substantial exposure to mercury.
The overall distribution of breathing zone air, blood and urinary levels is right-skewed and similar to the log-normal distribution (air, median 48 mug/m3, n=49 ; blood, arithmetic mean AM 49 mug/L ; geometric mean GM 26 mug/L, n=192 ; urinary excretion, AM 140 mug/24h, GM 78 mug/24h, n=839 ; and urinary concentration, AM 160 mug/L, GM 83 mug/L, n=632).
Air, blood and urinary values show a high ratio of the between-and within-job variance, indicating differences in exposure by job. (...)
Mots-clés Pascal : Mercure, Métal lourd, Exposition professionnelle, Médecine travail, Homme, Soudage, Industrie métallurgique, Antécédent, Epidémiologie, Italie, Europe, Teneur air ambiant, Lieu travail, Taux, Sang, Industrie extractive, Urine, Liquide biologique, Corrélation, Histoire professionnelle
Mots-clés Pascal anglais : Mercury, Heavy metal, Occupational exposure, Occupational medicine, Human, Welding, Metallurgical industry, Antecedent, Epidemiology, Italy, Europe, Ambient air concentration, Work place, Rate, Blood, Mining industry, Urine, Biological fluid, Correlation
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0218036
Code Inist : 002B03L05. Création : 11/09/1998.