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Spatial distribution of respirable and inhalable particulate matter concentration in sawmills of South-South Region of Nigeria

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Author(s): T.F. Ediagbonya | A. E. Tobin | E. E. Olumese, et al.

Journal: Environmental Skeptics and Critics
ISSN 2224-4263

Volume: 2;
Issue: 2;
Start page: 63;
Date: 2013;
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Keywords: respirable particle | inhalable particle | sawmill and South-South spatial variation | toxicity potential

ABSTRACT
Dust particles in the air that can be respired into the nose or mouth during normal breathing are known as inhalable particle. Inhalation decreases gradually with increasing particle diameter. The respirable and inhalable sawdust were collected from nine different sawmills in Benin City from November 2009 to February 2010 using portable programmable SKC Air Check XR5000 High Volume Gravimetric Sampler Model 210-5000 Serial No. 20537 and I.O.M (Institute Occupational Medicine Edinburg) Multi dust sampler, Batch No. 221442/1. The objective of this study is to know the concentration of inhalable suspended particulate matter fraction and the respirable suspended particulate matter fraction in sawmill particulate. The mean concentration range of the respirable suspended particulate matter was 173.61-520.83 g/m3 and the inhalable suspended particulate matter was in a range of 555.56-2,013.98 g/m3. A strong positive correlation existed for inhalable suspended particulate matter and respirable suspended particulate matter. And the spatial variation was significant and remarkable.
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