Review And Evaluation Of Recent Scientific Literature Regarding Occupational Exposure To Coke Oven Emissions.
NIOSH 1977 Dec:46 pages
Occupational hazard assessment of coke oven emissions is reviewed and evaluated. The report is to be used to aid NIOSH in determining whether the existing criteria and recommended standards should be reviewed. Sampling and assay techniques are reported. Human effects such as increased risk of carcinoma, dermatitis, photosensitization, and early death are some of the hazards described from epidemiological data. Animal toxicity studies have looked at the effects of inhalation and skin toxicity in mice and rats. Efforts have been made to control air emissions from coke ovens. One company uses a closed pipeline charging system to deliver preheated coal to the coke oven. Another uses a process called stage charging to reduced the emissions without extensive modification of existing equipment. The development of more efficient cleaning and regular changing of work clothes are measures currently taken to prevent skin exposure of workers. The authors conclude that a definitive analysis of the occupational hazards associated with exposure to coke oven emissions cannot presently be made because of complicated epidemiologic evaluations, inadequate animal experimental studies, and difficulty in determining risk assessments of low concentrations of carcinogens involved in the emissions.
NIOSH-Contract; Epidemiology; Toxic-effects; Toxicology; Biological-effects; Skin-exposure; Occupational-exposure; Carcinogenicity; Biological-factors; Contract-210-76-0167;
NIOSH, U.S. Department of Health, Education, and Welfare, Rockville, Maryland