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Aerosol Particle and Organic Vapor Concentrations at Industrial Work Sites in MalaysiaDepartment of Community Health, Universiti Kebangsaan, Bangi, Selangor, Malaysia
Department of Civil and Environmental Engineering, University Kebangsaan, Bangi, Selangor, Malaysia
Department of Geography, Universiti Kebangsaan, Bangi, Selangor, Malaysia
Department of Chemical Engineering, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Department of Chemical Engineering, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Department of Civil Engineering, Sultan Abdul Halim Muadzam Shah Polytechnic, Jitra, Kedah, Malaysia
University of Texas, Austin USA The objective of this study was to establish baseline data about air pollutants potentially related to nasopharyngeal carcinoma (NPC) in the Federal Territory and Selangor, Malaysia. During 1991-1993, ambient air quality was monitored at 42 work sites representing ten industrial sectors: adhesive manufacturing, foundries, latex processing, metalworking, plywood/veneer milling, ricemilling, rubber tire manufacturing, sawmilling, shoemaking, and textile related industries. At each work site, aerosol particle size distributions and concentrations of formaldehyde, benzene, toluene, isopropyl alcohol, and furfural were measured. Mean aerosol particle concentrations ranged from 61 µg/ m3 in foundries to 5,578 µg/m 3 in ricemills, with five industries (adhesives, metalworking, ricemilling, sawmilling, and shoemaking) exceeding the US EPA 24-hr ambient air standard for PM-10. Formaldehyde concentrations exceeded the threshold limit value (TLV) in adhesives factories. Other vapours and elements measured were well below TLVs. Asia Pac J Public Health 2001;13(1): 24-29
Key Words: Aerosol particles formaldehyde ambient air quality nasopharyngeal carcinoma Malaysia.
Asia-Pacific Journal of Public Health, Vol. 13, No. 1,
24-29 (2001) |
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