The influence of clay mineralogy on the mobility of radiocaesium in upland soils of NW Italy

Aurelio Facchinelli; Luigi Gallini; Elisabetta Barberis; Mauro Magnoni; Andrew Hursthouse

doi:10.1016/S0265-931X(00)00206-X

The influence of clay mineralogy on the mobility of radiocaesium in upland soils of NW Italy

Aurelio Facchinelli
, Luigi Gallini
, Elisabetta Barberis
, Mauro Magnoni
, Andrew Hursthouse

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

137Cs extraction experiments were performed on 14 contaminated soils from NW Italy with different characteristics and mineralogical composition. Solutions of HCl (pH=0.5) and buffered EDTA/ammonium acetate (Lakanen solution) were used to assess bioavailability. The results show that less than 2% of 137Cs is available for leaching and/or root uptake. Even within a complex natural system it was possible to identify the amount of swelling clays (vermiculite+smectite) as the main control on Cs mobility under acidic conditions. The ammonium ion appears to be effective in desorbing Cs and its role is briefly discussed in terms of crystal chemistry. The relevance of mineralogy in assessing soil vulnerability is underlined.

Original language	English
Pages (from-to)	299-307
Number of pages	9
Journal	Journal of Environmental Radioactivity
Volume	56
Issue number	3
DOIs	https://doi.org/10.1016/S0265-931X(00)00206-X
Publication status	Published - 2001

Keywords

Radiocaesium
Mobility
Desorption
Clay minerals

Access to Document

10.1016/S0265-931X(00)00206-X

Cite this

@article{ed890b53c37f4c41b8f8eea5b74ee9b9,

title = "The influence of clay mineralogy on the mobility of radiocaesium in upland soils of NW Italy",

abstract = "137Cs extraction experiments were performed on 14 contaminated soils from NW Italy with different characteristics and mineralogical composition. Solutions of HCl (pH=0.5) and buffered EDTA/ammonium acetate (Lakanen solution) were used to assess bioavailability. The results show that less than 2\% of 137Cs is available for leaching and/or root uptake. Even within a complex natural system it was possible to identify the amount of swelling clays (vermiculite+smectite) as the main control on Cs mobility under acidic conditions. The ammonium ion appears to be effective in desorbing Cs and its role is briefly discussed in terms of crystal chemistry. The relevance of mineralogy in assessing soil vulnerability is underlined.",

keywords = "Radiocaesium, Mobility, Desorption, Clay minerals",

author = "Aurelio Facchinelli and Luigi Gallini and Elisabetta Barberis and Mauro Magnoni and Andrew Hursthouse",

year = "2001",

doi = "10.1016/S0265-931X(00)00206-X",

language = "English",

volume = "56",

pages = "299--307",

journal = "Journal of Environmental Radioactivity",

issn = "0265-931X",

publisher = "Elsevier Limited",

number = "3",

}

TY - JOUR

T1 - The influence of clay mineralogy on the mobility of radiocaesium in upland soils of NW Italy

AU - Facchinelli, Aurelio

AU - Gallini, Luigi

AU - Barberis, Elisabetta

AU - Magnoni, Mauro

AU - Hursthouse, Andrew

PY - 2001

Y1 - 2001

N2 - 137Cs extraction experiments were performed on 14 contaminated soils from NW Italy with different characteristics and mineralogical composition. Solutions of HCl (pH=0.5) and buffered EDTA/ammonium acetate (Lakanen solution) were used to assess bioavailability. The results show that less than 2% of 137Cs is available for leaching and/or root uptake. Even within a complex natural system it was possible to identify the amount of swelling clays (vermiculite+smectite) as the main control on Cs mobility under acidic conditions. The ammonium ion appears to be effective in desorbing Cs and its role is briefly discussed in terms of crystal chemistry. The relevance of mineralogy in assessing soil vulnerability is underlined.

AB - 137Cs extraction experiments were performed on 14 contaminated soils from NW Italy with different characteristics and mineralogical composition. Solutions of HCl (pH=0.5) and buffered EDTA/ammonium acetate (Lakanen solution) were used to assess bioavailability. The results show that less than 2% of 137Cs is available for leaching and/or root uptake. Even within a complex natural system it was possible to identify the amount of swelling clays (vermiculite+smectite) as the main control on Cs mobility under acidic conditions. The ammonium ion appears to be effective in desorbing Cs and its role is briefly discussed in terms of crystal chemistry. The relevance of mineralogy in assessing soil vulnerability is underlined.

KW - Radiocaesium

KW - Mobility

KW - Desorption

KW - Clay minerals

U2 - 10.1016/S0265-931X(00)00206-X

DO - 10.1016/S0265-931X(00)00206-X

M3 - Article

SN - 0265-931X

VL - 56

SP - 299

EP - 307

JO - Journal of Environmental Radioactivity

JF - Journal of Environmental Radioactivity

IS - 3

ER -

The influence of clay mineralogy on the mobility of radiocaesium in upland soils of NW Italy

Abstract

Keywords

Access to Document

Fingerprint

Cite this