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Measurement of personal exposure to outdoor aeromycota in northern New South Wales, Australia.

Authors
Green-BJ; O'Meara-T; Sercombe-JK; Tovey-ER
Source
Ann Agric Environ Med 2006 Jul; 13(2):225-234
NIOSHTIC No.
20031486
Abstract
Aerobiological sampling traditionally uses a volumetric spore trap located in a fixed position to estimate personal exposure to airborne fungi. In this study, the number and identity of fungi inhaled by human subjects (n=34), wearing Intra-nasal air (INASs), was measured over 2-hour periods in an Outdoor community setting, and compared to fungal Counts made with a Burkard spore trap and Institute of Occupational Medicine personal filter air samplers (IOMs). All sampling devices were in close proximity and located in an outdoor environment in Casino, northern New South Wales, Australia. Using INASs, the most prevalent fungi inhaled belonged to soil or vegetation borne spores of Alternaria, Arthrinium, Bipolaris, Cladosporium, Curvularia, Epicoccum, Exserohilum, Fusarium, Pithomyces, Spegazzinia and Tetraploa species, Xylariaceae ascospores, in addition to hyphal fragments. These results showed that inhaled fungal exposure in most people varied in a 2-fold range with 10-fold outliers. In addition, the INASs and personal air filters agreed more with each other than with Burkard spore trap counts (r=0.74, p < 0.0001). These findings further support a new paradigm of personal fungal exposure, which implicates the inhalation of a spectrum of fungi more closely associated with soil or vegetation borne mycoflora and hyphal fragments than what is collected by stationary spore traps in the same geographic region.
Keywords
Measurement-equipment; Inhalation-studies; Breathing-zone; Fungi; Fungal-infections; Microorganisms
Contact
BJ Green, Ctr Dis Control & Prevent, Allergy & Clin Immunol Branch, Hlth Effects Lab Div, NIOSH, 1095 Willowdale Rd,MS 4020, Morgantown, WV 26505 USA
CODEN
AAAEFJ
Publication Date
20060701
Document Type
Journal Article
Email Address
Brett.Green@cdc.hhs.gov
Fiscal Year
2006
NTIS Accession No.
NTIS Price
Issue of Publication
2
ISSN
1232-1966
NIOSH Division
HELD
Priority Area
Disease and Injury: Asthma and Chronic Obstructive Pulmonary Disease
Source Name
Annals of Agricultural and Environmental Medicine
State
WV
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