Soil–pore water distribution of silver and gold engineered nanoparticles in undisturbed soils under unsaturated conditions

•Both Ag and Au ENPs added to soils were retained almost completely within 24h.•The short term solubility of Au was partly controlled by natural soil colloids.•Ag from Ag ENPs added to soils was present in the pore water mostly as ionic Ag.•Under aerated soil conditions the actual availability and m...

Full description

Saved in:
Bibliographic Details
Published in:Chemosphere (Oxford) 2015-10, Vol.136, p.86-94
Main Authors: Tavares, D.S., Rodrigues, S.M., Cruz, N., Carvalho, C., Teixeira, T., Carvalho, L., Duarte, A.C., Trindade, T., Pereira, E., Römkens, P.F.A.M.
Format: Article
Language:English
Subjects:
Aggregates
Availability
Chemical availability
Coloring Agents
Environment
Gold
Gold - analysis
Groundwater - chemistry
Metal Nanoparticles - analysis
Models, Chemical
Nanoparticles
Porosity
Risk assessment
Silver
Silver - analysis
Silver/gold nanoparticles
Soil - chemistry
Soil contamination
Soil distribution
Soil Pollutants - analysis
Soils
Water
Water engineering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Both Ag and Au ENPs added to soils were retained almost completely within 24h.•The short term solubility of Au was partly controlled by natural soil colloids.•Ag from Ag ENPs added to soils was present in the pore water mostly as ionic Ag.•Under aerated soil conditions the actual availability and mobility of Ag and Au ENPs in soils are low. Release of engineered nanoparticles (ENPs) to soil is well documented but little is known on the subsequent soil–pore water distribution of ENPs once present in soil. In this study, the availability and mobility of silver (Ag) and gold (Au) ENPs added to agricultural soils were assessed in two separate pot experiments. Pore water samples collected from pots from day 1 to 45 using porous (
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2015.04.054