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Behavioral effects of exposure to organic solvents in carpet layers

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Author: Muijser, H. · Geuskens, R.B.M. · Hooisma, J. · Emmen, H.H. · Kulig, B.M.
Institution: TNO Voeding
Source:Neurotoxicology and Teratology, 4, 18, 455-462
Identifier: 53456
doi: doi:10.1016/0892-0362(96)00034-7
Keywords: Nutrition · Neurobehavioral Evaluation System · Neurobehavioral testing · Neurotoxicity · Occupational exposure · Organic solvents · acetic acid ethyl ester · adhesive agent · cyclohexane · heptane · organic solvent · toluene · adult · air sampling · alcohol consumption · conference paper · controlled study · education · human · major clinical study · male · neuropsychological test · neurotoxicity · occupational exposure · priority journal · smoking · Adhesives · Adult · Behavior · Diagnosis, Computer-Assisted · Floors and Floorcoverings · Humans · Male · Neuropsychological Tests · Occupational Exposure · Psychometrics · Psychomotor Performance · Reaction Time · Socioeconomic Factors · Solvents · Time Factors


Carpet layers and age-matched controls were investigated both at the beginning of a working day and at the end with four subtests of a neuropsychological test battery (NES2). Exposure to toluene, cyclohexane, ethyl acetate, and heptane was measured with personal air sampling methods. One group of carpet layers used water-based adhesives (WBA) on the day the investigation took place and the other group used contact adhesives (CA) on that day. The WBA group was exposed primarily to toluene, and the CA group was exposed to other solvents as well. Initial (before work) differences in neuropsychological scores between all exposed workers and controls could be attributed to differences in education, the carpet layers being somewhat higher educated. No differences were found between the solvent-exposed and control groups that would suggest persistent effects of chronic solvent exposures. The improvement in test scores over the day was the same in both groups. However, evidence for exposure-related changes in test scores over the day were found within the exposed group.