Tags

Type your tag names separated by a space and hit enter

Sorption, dissolution and pH determine the long-term equilibration and toxicity of coated and uncoated ZnO nanoparticles in soil.
Environ Pollut. 2013 Jul; 178:59-64.EP

Abstract

To assess the effect of long-term dissolution on bioavailability and toxicity, triethoxyoctylsilane coated and uncoated zinc oxide nanoparticles (ZnO-NP), non-nano ZnO and ZnCl2 were equilibrated in natural soil for up to twelve months. Zn concentrations in pore water increased with time for all ZnO forms but peaked at intermediate concentrations of ZnO-NP and non-nano ZnO, while for coated ZnO-NP such a clear peak only was seen after 12 months. Dose-related increases in soil pH may explain decreased soluble Zn levels due to fixation of Zn released from ZnO at higher soil concentrations. At T = 0 uncoated ZnO-NP and non-nano ZnO were equally toxic to the springtail Folsomia candida, but not as toxic as coated ZnO-NP, and ZnCl2 being most toxic. After three months equilibration toxicity to F. candida was already reduced for all Zn forms, except for coated ZnO-NP which showed reduced toxicity only after 12 months equilibration.

Authors+Show Affiliations

Department of Ecological Science, Faculty of Earth and Life Sciences, VU University, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands. p.l.waalewijn-kool@vu.nlNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23542444

Citation

Waalewijn-Kool, Pauline L., et al. "Sorption, Dissolution and pH Determine the Long-term Equilibration and Toxicity of Coated and Uncoated ZnO Nanoparticles in Soil." Environmental Pollution (Barking, Essex : 1987), vol. 178, 2013, pp. 59-64.
Waalewijn-Kool PL, Diez Ortiz M, van Straalen NM, et al. Sorption, dissolution and pH determine the long-term equilibration and toxicity of coated and uncoated ZnO nanoparticles in soil. Environ Pollut. 2013;178:59-64.
Waalewijn-Kool, P. L., Diez Ortiz, M., van Straalen, N. M., & van Gestel, C. A. (2013). Sorption, dissolution and pH determine the long-term equilibration and toxicity of coated and uncoated ZnO nanoparticles in soil. Environmental Pollution (Barking, Essex : 1987), 178, 59-64. https://doi.org/10.1016/j.envpol.2013.03.003
Waalewijn-Kool PL, et al. Sorption, Dissolution and pH Determine the Long-term Equilibration and Toxicity of Coated and Uncoated ZnO Nanoparticles in Soil. Environ Pollut. 2013;178:59-64. PubMed PMID: 23542444.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sorption, dissolution and pH determine the long-term equilibration and toxicity of coated and uncoated ZnO nanoparticles in soil. AU - Waalewijn-Kool,Pauline L, AU - Diez Ortiz,Maria, AU - van Straalen,Nico M, AU - van Gestel,Cornelis A M, Y1 - 2013/03/28/ PY - 2012/10/26/received PY - 2013/02/26/revised PY - 2013/03/01/accepted PY - 2013/4/2/entrez PY - 2013/4/2/pubmed PY - 2013/8/31/medline SP - 59 EP - 64 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 178 N2 - To assess the effect of long-term dissolution on bioavailability and toxicity, triethoxyoctylsilane coated and uncoated zinc oxide nanoparticles (ZnO-NP), non-nano ZnO and ZnCl2 were equilibrated in natural soil for up to twelve months. Zn concentrations in pore water increased with time for all ZnO forms but peaked at intermediate concentrations of ZnO-NP and non-nano ZnO, while for coated ZnO-NP such a clear peak only was seen after 12 months. Dose-related increases in soil pH may explain decreased soluble Zn levels due to fixation of Zn released from ZnO at higher soil concentrations. At T = 0 uncoated ZnO-NP and non-nano ZnO were equally toxic to the springtail Folsomia candida, but not as toxic as coated ZnO-NP, and ZnCl2 being most toxic. After three months equilibration toxicity to F. candida was already reduced for all Zn forms, except for coated ZnO-NP which showed reduced toxicity only after 12 months equilibration. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/23542444/Sorption_dissolution_and_pH_determine_the_long_term_equilibration_and_toxicity_of_coated_and_uncoated_ZnO_nanoparticles_in_soil_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(13)00119-X DB - PRIME DP - Unbound Medicine ER -