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HERO ID
633897
Reference Type
Journal Article
Title
Modeled environmental concentrations of engineered nanomaterials (TiO2, ZnO, Ag, CNT, Fullerenes) for different regions
Author(s)
Gottschalk, F; Sonderer, T; Scholz, RW; Nowack, B
Year
2009
Is Peer Reviewed?
1
Journal
Environmental Science & Technology
ISSN:
0013-936X
EISSN:
1520-5851
Volume
43
Issue
24
Page Numbers
9216-9222
Language
English
PMID
20000512
DOI
10.1021/es9015553
Web of Science Id
WOS:000272462500030
Abstract
Engineered nanomaterials (ENM) are already used in many products and consequently released into environmental compartments. In this study, we calculated predicted environmental concentrations (PEC) based on a probabilistic material flow analysis from a life-cycle perspective of ENM-containing products. We modeled nano-TiO(2), nano-ZnO, nano-Ag, carbon nanotubes (CNT), and fullerenes for the U.S., Europe and Switzerland. The environmental concentrations were calculated as probabilistic density functions and were compared to data from ecotoxicological studies. The simulated modes (most frequent values) range from 0.003 ng L(-1) (fullerenes) to 21 ng L(-1) (nano-TiO(2)) for surface waters and from 4 ng L(-1) (fullerenes) to 4 microg L(-1) (nano-TiO(2)) for sewage treatment effluents. For Europe and the U.S., the annual increase of ENMs on sludge-treated soil ranges from 1 ng kg(-1) for fullerenes to 89 microg kg(-1) for nano-TiO(2). The results of this study indicate that risks to aquatic organisms may currently emanate from nano-Ag, nano-TiO(2), and nano-ZnO in sewage treatment effluents for all considered regions and for nano-Ag in surface waters. For the other environmental compartments for which ecotoxicological data were available, no risks to organisms are presently expected.
Tags
•
Nanoscale Carbon
All References Cited
External Review Draft
Transport and Fate
Exposure Uptake Dose
Peer Reviewed Draft
Transport & Fate
Priority Area: Ch. 3 and Appendix D
Exposure, Uptake, and Dose
Priority Area: Ch. 4 and Appendix E
Final Case Study
Transport & Fate
Priority Area: Ch. 3 and Appendix D
•
Nanoscale Silver
Final Case Study
Transport, Transformation and Fate
Effects
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