|Document ID (ISN)||112521|
|ISSN - Serial title
||1545-9624 - Journal of Occupational and Environmental Hygiene
|Convention or series no.
||Zeleke Z.K., Moen B.E., Brňtveit M.
||Excessive exposure to dust among cleaners in the Ethiopian cement industry
||Sep. 2011, Vol.8, No.9, p.544-550. Illus. 21 ref.
||Excessive_exposure_[BUY_THIS_ARTICLE] [in English]
||This study characterizes personal exposure to total and respirable dust among production workers in two cement factories in Ethiopia, with particular focus on cleaners. In Ethiopian cement plants, flow lines are partly open, and cleaning workers use brooms and shovels to remove dust that has settled on floors and machines. Personal full-shift samples of total and respirable dust were taken in the breathing zones of 105 workers in two cement plants. Samples of total and respirable dust were collected on 37-mm cellulose acetate filters of closed-face cassettes and in plastic respirable cyclones, respectively. In both factories, cleaners had significantly higher exposures to total and respirable dust than other production workers. Among cleaners, the geometric means for total and respirable dust exposure were 549 and 6.8 mg/m3 in one of the plants, and 153 and 2.8 mg/m3 in the other. Only 7% of the production workers used respiratory protective devices. Preventive measures are needed to reduce dust exposure.
||Ethiopia; airborne dust; respirable dust; exposure evaluation; cement industry
||breathing atmosphere; cleaning; personal sampling; supply of personal protective equipment
||D - Periodical articles
||Materials, glass and ceramics
Toxic and dangerous substances
|Broad subject area(s)
||Cement and concrete