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Document ID (ISN)111812
CIS number 11-0484
ISSN - Serial title 1076-2752 - Journal of Occupational and Environmental Medicine
Year 2009
Convention or series no.
Author(s) Salgueiro Barboni M.T., Feitosa-Santana C., Zachi E.C., Lago M., Antunes Teixeira R.A., Taub A., da Costa M.F., de Lima Silveira L.C., Fix Ventura D.
Title Preliminary findings on the effects of occupational exposure to mercury vapor below safety levels on visual and neuropsychological functions
Bibliographic information Dec. 2009, Vol.51, No.12, p.1403-1412. Illus. 48 ref.
Abstract The objective of this study was to evaluate whether there are visual and neuropsychological decrements in workers with low exposure to mercury (Hg) vapour. Visual fields, contrast sensitivity, color vision, and neuropsychological functions were measured in 10 workers chronically-exposed to Hg vapour (duration 4.3±2.8y; urinary Hg concentration 22.3±9.3μg/g creatinine). For the worst eyes, altered visual field thresholds, lower contrast sensitivity and color discrimination were found compared with controls. There were no significant differences between Hg-exposed subjects and controls on neuropsychological tests. Nevertheless, duration of exposure was statistically correlated to verbal memory and depression scores. Chronic exposure to Hg vapour at currently-accepted safety levels was found to be associated with visual losses but not with neuropsychological dysfunctions in the sample of workers studied.
Descriptors (primary) mercury; visual function disorders; permissible levels; long-term exposure; neurological effects
Descriptors (secondary) cognitive performance; determination in urine; vision tests; case-control study
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Occupational pathology
Broad subject area(s) Occupational medicine, epidemiology
Chemical safety
Browse category(ies) Diseases of the eye and vision damage
Diseases of the nervous system
Mercury and compounds