2013-10-01 12:00 - Messages

Calculette vibration mains bras

Cette calculette au format Excel permet d'évaluer l'exposition quotidienne aux vibrations transmises aux membres supérieurs. Sans avoir besoin de réaliser des mesures complexes, elle permet d'estimer rapidement l'exposition vibratoire journalière transmise par les machines portatives ou guidées à la main, et ceci même si l'opérateur utilise plusieurs équipements dans une même journée.
Les résultats donnés par la calculette permettent de situer les niveaux d'exposition d'un opérateur par rapport aux valeurs limites réglementaires.

Source : http://www.inrs.fr/accueil/produits/mediatheque/doc/outils.html?refINRS=outil43

Ethylbenzene-Induced Hearing Loss, Neurobehavioral Function, and Neurotransmitter Alterations in Petrochemical Workers

Objective: To estimate hearing loss, neurobehavioral function, and neurotransmitter alteration induced by ethylbenzene in petrochemical workers. Methods: From two petrochemical plants, 246 and 307 workers exposed to both ethylbenzene and noise were recruited—290 workers exposed to noise only from a power station plant and 327 office personnel as control group, respectively. Hearing and neurobehavioral functions were evaluated. Serum neurotransmitters were also determined. Results: The prevalence of hearing loss was much higher in petrochemical groups than that in power station and control groups (P < 0.05). Compared with the control group, scores of neurobehavioral function reflecting learning and memory were decreased in petrochemical workers (P < 0.05), as well as acetylcholinesterase activity. Negative correlation was shown between neurobehavioral function and acetylcholinesterase. Conclusions: Ethylbenzene exposure might be associated with hearing loss, neurobehavioral function impairment, and imbalance of neurotransmitters.

Source : Zhang, M.; Wang, Y.; Wang, Q.; Yang, D.; Zhang, J.; Wang, F.; Gu, Q. Journal of Occupational & Environmental Medicine, September 2013, Vol. 55, No 9, p.1001–1006. http://dx.doi.org/10.1097/JOM.0b013e31829f3142

 

http://journals.lww.com/joem/Abstract/2013/09000/Ethylbenzene_Induced_Hearing_Loss,_Neurobehavioral.2.aspx

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