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The Environmental Exposure Unit (EEU) is a 924 m3 facility (Kingston General Hospital, Ontario) in which uniform concentrations of various pollens in HEPA-filtered air at known rates of laminar airflow can be maintained. This facility provided a unique opportunity to compare several air samplers without the environmental variation inherent in outdoor comparisons. The purpose of this study was to conduct...
Associations between increased morbidity and exposure to ambient air particulates have been the subject of intense study. Few data exist on the presence of cells or cell materials of fungi, bacteria and pollen in fine particle samples (< 2.5μm). Because it is not possible to recognize such fragments by conventional means, one approach is to determine the presence of signature biochemicals. This...
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