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    Workplace monitoring and occupational health studies in Kenya using nuclear and related analytical techniques

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    Date
    1997
    Author
    Kinyua, AM
    Gatebe, CK
    Mangala, MJ
    Maina, DM
    Korir, AK
    Bartilol, S
    Type
    Article; en_US
    Language
    en
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    Abstract
    Air pollution studies in Nairobi are indicating a rising trend in the particulate matter loading. The trend is mainly attributed to increased volume of motor vehicles, the physical change of the environment, agricultural and industrial activities. In this study, total suspended particulate matter sampling at the Nairobi industrial area and inside one workplace are reported. Included also are the results of analysis of water samples and effluents collected from a sugar factory, a tannery, and mercury(Hg) analysis in some beauty creams sold in Nairobi. The samples were analysed for heavy metal content using Energy Dispersive X-ray Fluorescence (EDXRF) while the suspended particulate matter (SPM) concentrations were determined by gravimetric technique. Total reflection x-ray fluorescence(TRXF), atomic absorption spectrophotometry and PIXE analytical techniques plus the use of Standard and Certified Reference Materials(SRM's and CRM's) were used for quality control, analysis and evaluation of the accrued data. Air sampling in the industrial area was done twice(Wednesday and Saturday) every week for a period of two months(November and December, 1996) and twice monthly for a period of six months (January-June 1997). Each sample covering approximately 24 hours, was collected using the 'Gent' Stacked Filter Unit (SFU), for day and night times. The SPM were found to vary from 16 to 83 mgnr3 during the sampling period. The analysis of dust collected inside a workplace showed that there was poor filtration of the air pumped into the building and that there was a need for improvement of the air conditioning unit plus reduction of emissions from a neighbouring tyre factory.
    URI
    http://hdl.handle.net/11295/87769
    Citation
    Workplace monitoring and occupational health studies in Kenya using nuclear and related analytical techniques-CRP KEN/9478
    Publisher
    Institute Of Nuclear Science, University Of Nairobi, Kenya
    Collections
    • Faculty of Engineering, Built Environment & Design (FEng / FBD) [1437]

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