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To assess the potential chronic health effects of methylene chloride, the mortality experience of a maturing 1964 to 1970 cohort of 1,013 hourly men was evaluated through 1984. On average, employees were exposed at a rate of 26 ppm (eight-hour time-weighted average) for 22 years; median latency was 30 years. Compared with the general population, no(More)
Because of a number of cases of peripheral neuropathy that occurred in factory workers employed in a fabric-printing plant in 1973, chronic inhalation experiments have been conducted using the printing-ink solvents methyl n-butyl ketone (MBK) and methyl iso-butyl ketone (MIBK). After four months of intermittent respiratory exposure to 1,300 parts per(More)
The involvement of the nervous system in systemic intoxication offers diagnostic and investigative challenges to the occupational health team. Often early evidence of neurotoxicity is vague, of a highly subjective nature and may be complicated by the presence of neuropathies due to other causes such as diabetes mellitus or exposure to multiple neurotoxins(More)
There is currently no well-accepted standard method for evaluation of developmental toxicity data. This paper presents one approach to the evaluation of developmental toxicity data. We initially identify some pertinent factors that influence the interpretation of animal data and summarize the literature pertaining to these factors. Such factors include the(More)