Particle Resuspension in School Gyms during Physical Activities
نویسندگان
چکیده
منابع مشابه
Studies on Particle Resuspension
Particle deposits on indoor surfaces can be as complex and diverse as the indoor environments in which they exist. Dust loading can range over several orders of magnitude, suggesting the existence of different types of particle deposits. These deposits can be broadly classified as either a monolayer, in which particles are sparsely deposited on a surface, or a multilayer, in which particles are...
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UNLABELLED People spend approximately one-third of their lives sleeping, where they can be exposed to a myriad of particle-bound biological agents and chemical pollutants that originate within mattresses and bedding, including allergens, fungal spores, bacteria, and particle-phase semi-volatile organic compounds. Full-scale particle resuspension experiments were conducted in an environmental ch...
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A study was conducted to experimentally quantify the influence of three variables on the level of resuspension of hazardous aerosol particles from clothing. Variables investigated include physical activity level (two levels, low and high), surface type (four different clothing material types), and time i.e. the rate at which particles resuspend. A mixture of three monodisperse tracer-labelled p...
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The purpose of this study was to determine if students ̓heart rate outcomes in physical education varied as a function of activity and grade. A total of 146 sixth to eighth graders participated in different activities (i.e., walking/jogging, line dancing, soccer, and catch ball). Their average heart rate (AHR) and percentage of time in and above target heart rate (PTHR) were used as outcome var...
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10 We derive and study a dynamic model for suspensions of negatively buoyant particles 11 on an incline. Our theoretical model includes the settling/sedimentation due to gravity 12 as well as the resuspension of particles induced by shear-induced migration, leading to 13 disaggregation of the dense sediment layer. Out of the three different regimes observed 14 in the experiments, we focus on th...
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ژورنال
عنوان ژورنال: Aerosol and Air Quality Research
سال: 2012
ISSN: 1680-8584,2071-1409
DOI: 10.4209/aaqr.2011.11.0209