منابع مشابه
Containment of microbial aerosols in a microbiological safety cabinet.
A microbiological safety cabinet was evaluated to determine conditions under which microorganisms might escape. Tests were conducted under three cabinet-closure conditions, various airflow velocities, and different laboratory operations, with 10(5), 1.1 x 10(5), and 10(6) microorganisms per cubic foot of cabinet space released per min for 5 min. The data revealed that (i) escape of a human infe...
متن کاملMicrobial aerosols: estimated contribution of combine harvesting to an airshed.
From plate counts of the airborne microorganisms in the downwind dust plume of operating grass-seed combines, the mean source concentrations were calculated to be 6.4 x 10 and 4.7 x 10/m, respectively, potentially accounting for at least 41.9% of the bacteria and 35.1% of the fungi in the airshed in the Willamette Valley, Oregon.
متن کاملExposure to Microbial Aerosols from Activated Sludge Treatment
Viab le pathogens are generally present at every stage of wastewater treatment. Thus a potential airborne infectious pathway due to microbial aerosols exists~ particularly at activated sludge treatment plants. In this study the concentration of sewage-borne indicator bacteria and viruses in effZuent aerosols was determined and the exposure to such aerosols by treatment plant workers was estimat...
متن کاملThe Dry Aerosol Deposition Device (DADD): an instrument for depositing microbial aerosols onto surfaces.
Concerns surrounding the contamination of infrastructure and equipment with biowarfare agents have led to the development of antimicrobial surfaces/coatings that are designed to "self-sterilize." Surfaces will likely be contaminated via an aerosol exposure and thus antimicrobial efficacy measurements should also be performed using biological aerosols. Standard methods that use microbial agents ...
متن کاملAerosols in Astrophysics
Solid phase material exists in low density astrophysical environments, from stellar atmospheres to interstellar clouds, from current times to early phases of the universe. We consider the origin, composition and evolution of solid phase materials in the particular case of stellar outer atmospheres, as representative of many conditions. Also considered are the dynamics and interactions in circum...
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ژورنال
عنوان ژورنال: Chest
سال: 2020
ISSN: 0012-3692
DOI: 10.1016/j.chest.2019.10.012