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Document ID (ISN)112521
CIS number 12-0250
ISSN - Serial title 1545-9624 - Journal of Occupational and Environmental Hygiene
Year 2011
Convention or series no.
Author(s) Zeleke Z.K., Moen B.E., Brňtveit M.
Title Excessive exposure to dust among cleaners in the Ethiopian cement industry
Bibliographic information Sep. 2011, Vol.8, No.9, p.544-550. Illus. 21 ref.
Internet access Excessive_exposure_[BUY_THIS_ARTICLE] [in English]
Abstract 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.
Descriptors (primary) Ethiopia; airborne dust; respirable dust; exposure evaluation; cement industry
Descriptors (secondary) breathing atmosphere; cleaning; personal sampling; supply of personal protective equipment
Document type D - Periodical articles
Subject(s) Materials, glass and ceramics
Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Cement and concrete
Exposure evaluation