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Characterization and Analysis of Aerosol Particle Retention and Re-aerosolization from Hook-and-Loop Fasteners on the International Space StationThe extensive use of hook and loop fasteners aboard the International Space Station warrants careful examination of its contribution to indoor air pollution, as its fine fibers catch aerosol particles then re-aerosolize them upon being pulled apart, often within the breathing zone of astronauts. This problem is expanded by the lack of gravity because airborne particles larger than 1 micrometer do not settle. Instead these aerosols remain in the air until removed by filtration. Aerosol inhalation can have negative health effects, ranging from acute symptoms to long-term consequences, depending on particle sizes, mass and material composition. This study characterizes the size distribution, number concentration, and mass concentration of re-aerosolized debris generated by hook and loop fasteners taken from the stray light cover of the Microgravity Science Glovebox in the U.S. Laboratory of the ISS to understand the extent of its impact on air quality. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM), in conjunction with energy dispersive spectroscopy (EDS) were also used to characterize the morphology and composition of the particles.
Document ID
20180007355
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Boyajian, Barbara
(California Univ. Los Angeles, CA, United States)
Meyer, Marit E.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
October 30, 2018
Publication Date
October 1, 2018
Subject Category
Environment Pollution
Man/System Technology And Life Support
Report/Patent Number
NASA/TM-2018-219925
GRC-E-DAA-TN50308
E-19541
Funding Number(s)
WBS: WBS 089407.01.22
CONTRACT_GRANT: USRA 2017
Distribution Limits
Public
Copyright
Public Use Permitted.
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