Skip to main content
Journal cover image

Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO2) Nanoparticles in Wetland Mesocosms.

Publication ,  Journal Article
Geitner, NK; Cooper, JL; Avellan, A; Castellon, BT; Perrotta, BG; Bossa, N; Simonin, M; Anderson, SM; Inoue, S; Hochella, MF; Richardson, CJ ...
Published in: Environmental science & technology
September 2018

Trace metals associated with nanoparticles are known to possess reactivities that are different from their larger-size counterparts. However, the relative importance of small relative to large particles for the overall distribution and biouptake of these metals is not as well studied in complex environmental systems. Here, we have examined differences in the long term fate and transport of ceria (CeO2) nanoparticles of two different sizes (3.8 vs 185 nm), dosed weekly to freshwater wetland mesocosms over 9 months. While the majority of CeO2 particles were detected in soils and sediments at the end of nine months, there were significant differences observed in fate, distribution, and transport mechanisms between the two materials. Small nanoparticles were removed from the water column primarily through heteroaggregation with suspended solids and plants, while large nanoparticles were removed primarily by sedimentation. A greater fraction of small particles remained in the upper floc layers of sediment relative to the large particles (31% vs 7%). Cerium from the small particles were also significantly more bioavailable to aquatic plants (2% vs 0.5%), snails (44 vs 2.6 ng), and insects (8 vs 0.07 μg). Small CeO2 particles were also significantly reduced from Ce(IV) to Ce(III), while aquatic sediments were a sink for untransformed large nanoparticles. These results demonstrate that trace metals originating from nanoscale materials have much greater potential than their larger counterparts to distribute throughout multiple compartments of a complex aquatic ecosystem and contribute to the overall bioavailable pool of the metal for biouptake and trophic transfer.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

September 2018

Volume

52

Issue

17

Start / End Page

9768 / 9776

Related Subject Headings

  • Wetlands
  • Nanoparticles
  • Metal Nanoparticles
  • Fresh Water
  • Environmental Sciences
  • Ecosystem
  • Cerium
  • Animals
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Geitner, N. K., Cooper, J. L., Avellan, A., Castellon, B. T., Perrotta, B. G., Bossa, N., … Hsu-Kim, H. (2018). Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO2) Nanoparticles in Wetland Mesocosms. Environmental Science & Technology, 52(17), 9768–9776. https://doi.org/10.1021/acs.est.8b02040
Geitner, Nicholas K., Jane L. Cooper, Astrid Avellan, Benjamin T. Castellon, Brittany G. Perrotta, Nathan Bossa, Marie Simonin, et al. “Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO2) Nanoparticles in Wetland Mesocosms.Environmental Science & Technology 52, no. 17 (September 2018): 9768–76. https://doi.org/10.1021/acs.est.8b02040.
Geitner NK, Cooper JL, Avellan A, Castellon BT, Perrotta BG, Bossa N, et al. Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO2) Nanoparticles in Wetland Mesocosms. Environmental science & technology. 2018 Sep;52(17):9768–76.
Geitner, Nicholas K., et al. “Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO2) Nanoparticles in Wetland Mesocosms.Environmental Science & Technology, vol. 52, no. 17, Sept. 2018, pp. 9768–76. Epmc, doi:10.1021/acs.est.8b02040.
Geitner NK, Cooper JL, Avellan A, Castellon BT, Perrotta BG, Bossa N, Simonin M, Anderson SM, Inoue S, Hochella MF, Richardson CJ, Bernhardt ES, Lowry GV, Ferguson PL, Matson CW, King RS, Unrine JM, Wiesner MR, Hsu-Kim H. Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO2) Nanoparticles in Wetland Mesocosms. Environmental science & technology. 2018 Sep;52(17):9768–9776.
Journal cover image

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

September 2018

Volume

52

Issue

17

Start / End Page

9768 / 9776

Related Subject Headings

  • Wetlands
  • Nanoparticles
  • Metal Nanoparticles
  • Fresh Water
  • Environmental Sciences
  • Ecosystem
  • Cerium
  • Animals