The aim of this study was to provide: (a) an evaluation of current ELF-MF exposure in workers, (b) the specific contribution of occupational exposure to overall 24-hour exposure, and (c) the representativeness of a Job Exposure Matrix. 543 workers were monitored for 2 whole days using personal meters. Time-Weighted Average (TWA) levels at work, at home, and outside the home (respectively work TWA, home TWA and environmental TWA) were calculated. Tasks were classified according to the ISCO 88 International Standard Classification of Occupations. In about 10% of the entire sample, the monitoring was repeated after 6-9 months. In the whole sample, the median of TWA am during work was 0.14 µT (5°-95° percentiles: 0.04-2.50 µT). Median Home TWA and Environmental TWA were respectively 0.03 (5°-95° percentiles 0.01-0.24 µT) and 0.05 µT (5th-95th percentiles 0.02-0.28 µT). The correlation between TWA values during the first monitoring and the replication was r=0.80. The contribution of occupational exposure to the overall 24-hour exposure was estimated showing that, during working days, about the 60% of exposure is related to work. The variability of individual work TWA among subjects included in the same ISCO 88 task, evaluated using ANOVA, proved significant in 56% of the tasks.
|Data di pubblicazione:||2015|
|Titolo:||Occupational and environmental exposure to extremely low frequency-magnetic fields in a large group of workers|
|Autori:||GOBBA, Fabriziomaria; ROSSI, PAOLO; BRAVO, GIULIA; CONTESSA, GIAN MARCO; KORPINEN, LEENA|
|Data del convegno:||21-26 September 2014|
|Nome del convegno:||8th International workshop on biological effects of electromagnetic fields|
|Luogo del convegno:||Varna, Bulgaria|
|Titolo del libro:||8th International workshop on biological effects of electromagnetic fields|
|Appare nelle tipologie:||Relazione in Atti di Convegno|
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