HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Titanium nanoparticles fate in small-sized watersheds under different land-uses

Abstract : Surface waters from three catchments having contrasting land-uses (forested, agricultural, and urban) were sampled monthly and analysed for nanoparticulate titanium dioxide (NPs-TiO2) by single particle ICPMS and electron microscopy. We report one-year of data for NPs-TiO2 having average number and mass concentrations of 9.1 x 108 NPs-TiO2 particles L-1 and 11 μg NPs-TiO2 L-1 respectively. An increase in concentration during warmer months is observed in the forested and agricultural catchments. Both concentrations of NPs-TiO2 are within the range of recently reported values using similar analytical approaches. The positive correlations for NPs-TiO2 mass concentration or particle number with the concentration of some trace elements and DOC in the forested and agricultural catchments suggest the detected NPs-TiO2 in these two systems are mostly from geogenic origin. Additionally, microscopy imaging confirmed the presence of NPs in the three catchments. Furthermore, the land-area normalized annual flux of NPs-TiO2 (1.65 kg TiO2 year-1 km-2) was highest for the agricultural catchment, suggesting that agricultural practices have a different impact on the NPs-TiO2 dynamics and exports than other land-uses (urban or forestry). A similar trend is also found by the reanalysis of recent literature data.
Document type :
Journal articles
Complete list of metadata

https://hal-univ-paris.archives-ouvertes.fr/hal-03349279
Contributor : Marc F. Benedetti Connect in order to contact the contributor
Submitted on : Monday, September 20, 2021 - 2:02:28 PM
Last modification on : Thursday, April 7, 2022 - 1:58:28 PM
Long-term archiving on: : Tuesday, December 21, 2021 - 6:48:17 PM

File

HAZMAT-DOI 10.1016:j.jhazmat.2...
Files produced by the author(s)

Identifiers

Collections

Citation

Jia-Lan Wang, Enrica Alasonati, Paola Fisicaro, Marc F. Benedetti. Titanium nanoparticles fate in small-sized watersheds under different land-uses. Journal of Hazardous Materials, Elsevier, 2022, 422, pp.126695. ⟨10.1016/j.jhazmat.2021.126695⟩. ⟨hal-03349279⟩

Share

Metrics

Record views

37

Files downloads

21