Synthetic TiO2 nanoparticle emission from exterior facades into the aquatic environment

Kaegi, Rälf; Ulrich, Andrea; Sinnet, Brian; Vonbank, R.; Wichser, Adrian; Zuleeg, Steffen; Simmler, Hans; Brunner, Samuel; Vonmont, Heinz; Burkhardt, Michael; Boller, Markus

doi:10.1016/j.envpol.2008.08.004

Cited by 714 publications

(411 citation statements)

References 35 publications

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“…One of the physical processes that will influence the final destination of the PM-ENM is abrasion (process 8) or mechanical erosion. Abrasion is the process by which physical forces, such as turbulent fluid regimes or strong collision of solid materials, induce the breakdown of the original material and may lead to the release of PW-ENM-or PW-ENM-containing particles in different shapes and sizes [48][49][50][51][52]. Shear stress estimations may indicate the final shape and size of the PW-ENM after undergoing abrasion processes.…”

Section: Nanoparticle Releasementioning

confidence: 99%

“…Kaegi et al [51] presented direct evidence of the environmental release of nanoTiO 2 by leaching from painted house facades under the influence of sun and rain. The same authors recently showed evidence that Ag is released from nano-Ag-containing paints [50].…”

Section: Release and Alteration Of Enmmentioning

confidence: 99%

“…However, direct release into water during paintbrush washing also must be considered [62]. Environmental variables such as temperature, humidity, sunlight, wind, and rain will be controlling factors [51]. The slower release rate will result in an additional alteration of the PW-ENM prior to transport because it is under the influence of weathering for a longer period.…”

Section: Case Study 1: Nanotio 2 In Sunscreenmentioning

confidence: 99%

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Potential scenarios for nanomaterial release and subsequent alteration in the environment

Nowack¹,

Ranville²,

Diamond³

et al. 2011

Enviro Toxic and Chemistry

522

353

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Abstract-The risks associated with exposure to engineered nanomaterials (ENM) will be determined in part by the processes that control their environmental fate and transformation. These processes act not only on ENM that might be released directly into the environment, but more importantly also on ENM in consumer products and those that have been released from the product. The environmental fate and transformation are likely to differ significantly for each of these cases. The ENM released from actual direct use or from nanomaterial-containing products are much more relevant for ecotoxicological studies and risk assessment than pristine ENM. Released ENM may have a greater or lesser environmental impact than the starting materials, depending on the transformation reactions and the material. Almost nothing is known about the environmental behavior and the effects of released and transformed ENM, although these are the materials that are actually present in the environment. Further research is needed to determine whether the release and transformation processes result in a similar or more diverse set of ENM and ultimately how this affects environmental behavior. This article addresses these questions, using four hypothetical case studies that cover a wide range of ENM, their direct use or product applications, and their likely fate in the environment. Furthermore, a more definitive classification scheme for ENM should be adopted that reflects their surface condition, which is a result of both industrial and environmental processes acting on the ENM. The authors conclude that it is not possible to assess the risks associated with the use of ENM by investigating only the pristine form of the ENM, without considering alterations and transformation processes. Environ. Toxicol. Chem. 2012;31:50-59. # 2011 SETAC

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Section: Nanoparticle Releasementioning

confidence: 99%

Section: Release and Alteration Of Enmmentioning

confidence: 99%

Section: Case Study 1: Nanotio 2 In Sunscreenmentioning

confidence: 99%

See 1 more Smart Citation

Potential scenarios for nanomaterial release and subsequent alteration in the environment

Nowack¹,

Ranville²,

Diamond³

et al. 2011

Enviro Toxic and Chemistry

522

353

View full text Add to dashboard Cite

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“…The great abundance of TiO 2 as natural particles creates an analytical challenge for distinguishing nano-and non-nano particles as well as natural from anthropogenic materials. Reports on the identification of industrial TiO 2 ENPs are therefore rare [62,63]. They are based on particle visualization with Ti detection in electron microscopes, taking the high Ti abundance in the particles together with smooth homogeneous morphologies or the observation of coatings, which are thought to be indicative of a synthetic rather than natural process, as evidence of the anthropogenic origin of the particles.…”

Section: Chromatographic Approachesmentioning

confidence: 99%

“…They are based on particle visualization with Ti detection in electron microscopes, taking the high Ti abundance in the particles together with smooth homogeneous morphologies or the observation of coatings, which are thought to be indicative of a synthetic rather than natural process, as evidence of the anthropogenic origin of the particles. Attempts at quantification have been based on bulk water analyses and transforming these values into particle number concentrations from the combination of EM-determined particle size distributions and particle properties [62]. Natural Ti-bearing nanoparticles have been identified in river sediment [64], and at the investigated site they mainly appear in the brookite form.…”

Section: Chromatographic Approachesmentioning

confidence: 99%

Analysis of engineered nanomaterials in complex matrices (environment and biota): General considerations and conceptual case studies

Kammer

Ferguson

Holden

et al. 2011

Enviro Toxic and Chemistry

403

241

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Cell‐Electronic Sensing of Cellular Responses to Micro‐ and Nanoparticles for Environmental Applications

Moe

McGuigan

et al. 2000

Encyclopedia of Analytical Chemistry

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Cell‐based biosensors ( CBB s) utilizing impedance measurement have become a powerful tool for cytotoxicity analysis of (i) engineered micro‐ and nanoparticles (NPs) and (ii) complex mixtures of environmental particulate matter ( PM ). With the recent increase in the development and application of NPs, bio‐analytical techniques capable of fast, reliable, and accurate cytotoxicity analysis are needed to prioritize these materials for further toxicological testing to ensure their safe use, both for human health and environmental safety. This article focuses on the development and application of impedance‐based CBBs for rapid, sensitive, efficient, and label‐free analysis of micro‐ and nanoparticle‐induced cytotoxicity through the monitoring of several cellular responses, including cell adhesion, spreading, proliferation, transepithelial or trans endothelial electrical resistance ( TER ), and micromotion. In addition, these techniques are potentially useful for air quality monitoring, as demonstrated through the cytotoxicity analysis of complex mixtures of PM. Instruments based on electric cell–substrate impedance sensing ( ECIS ) and real‐time cell analysis ( RTCA ) are the two most widely used impedance‐based devices commercially available. Thus, detailed descriptions of the principles directing the impedance‐based measurements and data analysis employed in these systems are presented.

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Synthetic TiO2 nanoparticle emission from exterior facades into the aquatic environment

Cited by 714 publications

References 35 publications

Potential scenarios for nanomaterial release and subsequent alteration in the environment

Potential scenarios for nanomaterial release and subsequent alteration in the environment

Analysis of engineered nanomaterials in complex matrices (environment and biota): General considerations and conceptual case studies

Cell‐Electronic Sensing of Cellular Responses to Micro‐ and Nanoparticles for Environmental Applications

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