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Dust entry

Coke-pit cleanup dust

Very high airborne coke dust released during periodic cleanup of underground coke pits.

Airborne form

dust

The form describes what is suspended in air at the point of exposure. A material can produce more than one form, such as dust during handling and fume during heating.

Health effects

high particulate exposureabnormal pulmonary function concernrespiratory disease concern

Evidence

A NIOSH environmental survey at a coke-processing facility measured personal breathing-zone coke-dust concentrations of 98–190 mg/m3 during semimonthly underground coke-pit cleanup, with a mean of 140 mg/m3. Abnormal pulmonary-function tests were found in 12% of those tested; routine-job exposures and the cleanup peaks were reported separately, so this evidence should not be generalized to all coke workers.

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Abstract · 1
Very high PBZ concentrations of coke dust occurred during a semimonthly cleanup of underground coke pits levels ranged from 98 to 190mg/m3 with a mean of 140mg/m3 ... Abnormal pulmonary function tests were found in 12 percent of those tested.

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