ORIGINAL RESEARCH
Influence of Earthworms on Extractability
of Metals from Soils Contaminated with Al2O3,
TiO2, Zn, and ZnO Nanoparticles
and Microparticles of Al2O3
Grażyna Bystrzejewska-Piotrowska1, Monika Asztemborska1, Iwona Giska1,
Antoni Mikoszewski2
1Isotope Laboratory, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
2Department of Ecology, Faculty of Biology, University of Warsaw, Banacha 2, 02-097 Warsaw, Poland
2Department of Ecology, Faculty of Biology, University of Warsaw, Banacha 2, 02-097 Warsaw, Poland
Pol. J. Environ. Stud. 2012;21(2):313-319
KEYWORDS
ABSTRACT
Nanoparticles (NPs) of Al2O3, TiO2, Zn, and ZnO, and with microparticles (MPs) of Al2O3 were introduced
into garden soil. Adult Dendrobaena veneta earthworms were added to half of the samples.
Concentration of the metals was determined after 1 and 10 days in soil eluates (water and EDTA) and in the
earthworms before and after gut cleansing.
The study showed the influence of soil and earthworm activity on the bioavailability of aluminum and titanium originating from NPs. Extractability of Al by water or EDTA increased after 10 days from aluminum oxide MP- and NP-treated soils. The presence of live earthworms completely abrogated this increase. Waterextractability of Ti from TiO2 NP-treated soils increased after 10 days, while EDTA-extractability remained unchanged. The presence of earthworms was associated with a decrease in Ti extractability. The highest extractability was observed for Zn, with negligible effects of time and earthworms.
Al, Ti, and Zn were not substantially accumulated in the earthworm tissues.
It was concluded that interaction of the nanoparticles with the soil and activity of the earthworms can affect the bioavailability and, potentially, toxicity of metals originating from nanostructures.
The study showed the influence of soil and earthworm activity on the bioavailability of aluminum and titanium originating from NPs. Extractability of Al by water or EDTA increased after 10 days from aluminum oxide MP- and NP-treated soils. The presence of live earthworms completely abrogated this increase. Waterextractability of Ti from TiO2 NP-treated soils increased after 10 days, while EDTA-extractability remained unchanged. The presence of earthworms was associated with a decrease in Ti extractability. The highest extractability was observed for Zn, with negligible effects of time and earthworms.
Al, Ti, and Zn were not substantially accumulated in the earthworm tissues.
It was concluded that interaction of the nanoparticles with the soil and activity of the earthworms can affect the bioavailability and, potentially, toxicity of metals originating from nanostructures.
Share
RELATED ARTICLE
| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
