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Six Danish paper recycling plants were included in an assessment of exposure to chemicals. A questionnaire on processes was completed, and in-plant industrial hygiene measurement data collected 1982-1994 were examined. The assessment of chemicals did not reveal a major use of possible carcinogens, but acrylamide may have been released in the work environment in one plant. A total of 197 hygiene measurements were recorded: 126 in the largest plant. Airborne concentrations of dust, microorganisms, and endotoxins varied widely between plants. High concentrations of dust were recorded in the paper machine area in one plant and in the repulping unit in another plant. In general, endotoxin levels were low, but endotoxin levels were increased in one plant when reuse of process water was intensified. Changes in procedures should be assessed by industrial hygiene measurements. |
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