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A platform for research: civil engineering, architecture and urbanism
Exposure to airborne engineered nanoparticles in the indoor environment
Abstract This literature review assesses the current state of knowledge about inhalation exposure to airborne, engineered nanoparticles in the indoor environment. We present principal exposure scenarios in indoor environments, complemented by analysis of the published literature and of an inventory of nanotechnology-enhanced consumer products. Of all products listed in the inventory, 10.8% (194 products) present the potential for aerosolization of nanomaterials and subsequent inhalation exposure during use or misuse. Among those, silver-containing products are the most prevalent (68 products). Roughly 50% of products would release wet aerosols and 50% would potentially release dry aerosols. Approximately 14% are cleaning products that can be broadly used in public indoor environments, where building occupants may be exposed. While a variety of nanomaterial compositions have been investigated in the limited number of published release and exposure studies, we identified a need for studies investigating nanofibers (beyond carbon nanotubes), nanofilms, nanoplatelets, and other emerging nanomaterials such as ceria and their nanocomposites. Finally, we provide recommendations for future research to advance the understanding of exposure to airborne nanomaterials indoors, such as studies into indoor chemistry of nanomaterials, better nanomaterial reporting and labeling in consumer products, and safer design of nanomaterial-containing consumer products.
Highlights One-tenth of consumer products present a potential for aerosolization. People will be exposed to wet and/or dry aerosols from nano-enhanced products. Health and fitness products are most likely to lead to inhalation exposures. Metal and metal oxide nanoparticles are most likely to lead to inhalation exposures. Subacute aerosol exposure levels are expected in indoor environments.
Exposure to airborne engineered nanoparticles in the indoor environment
Abstract This literature review assesses the current state of knowledge about inhalation exposure to airborne, engineered nanoparticles in the indoor environment. We present principal exposure scenarios in indoor environments, complemented by analysis of the published literature and of an inventory of nanotechnology-enhanced consumer products. Of all products listed in the inventory, 10.8% (194 products) present the potential for aerosolization of nanomaterials and subsequent inhalation exposure during use or misuse. Among those, silver-containing products are the most prevalent (68 products). Roughly 50% of products would release wet aerosols and 50% would potentially release dry aerosols. Approximately 14% are cleaning products that can be broadly used in public indoor environments, where building occupants may be exposed. While a variety of nanomaterial compositions have been investigated in the limited number of published release and exposure studies, we identified a need for studies investigating nanofibers (beyond carbon nanotubes), nanofilms, nanoplatelets, and other emerging nanomaterials such as ceria and their nanocomposites. Finally, we provide recommendations for future research to advance the understanding of exposure to airborne nanomaterials indoors, such as studies into indoor chemistry of nanomaterials, better nanomaterial reporting and labeling in consumer products, and safer design of nanomaterial-containing consumer products.
Highlights One-tenth of consumer products present a potential for aerosolization. People will be exposed to wet and/or dry aerosols from nano-enhanced products. Health and fitness products are most likely to lead to inhalation exposures. Metal and metal oxide nanoparticles are most likely to lead to inhalation exposures. Subacute aerosol exposure levels are expected in indoor environments.
Exposure to airborne engineered nanoparticles in the indoor environment
Vance, Marina E. (author) / Marr, Linsey C. (author)
Atmospheric Environment ; 106 ; 503-509
2014-12-22
7 pages
Article (Journal)
Electronic Resource
English
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