Sources, transport and sinks of beryllium in a coastal landscape affected by acidic soils

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Mats E Åström, Changxun Yu, Pasi Peltola, Jason K Reynolds, Peter Österholm, Miriam I Nystrand, Anna Augustsson, Joonas J Virtasalo, Linda Nordmyr, Antti EK Ojala
Publiceringsår: 2018
Tidskrift: Geochimica et Cosmochimica Acta
Volym: 232
Nummer: 1
Artikelns första sida, sidnummer: 288
Artikelns sista sida, sidnummer: 302


Abstrakt

Beryllium (Be) sources, transport and sinks were studied in a coastal
landscape where acidic soils (acid sulfate soils) have developed after
drainage of fine-grained sulfide-bearing sediments. The study included
the determination of total abundance and speciation of Be in a variety
of solid and aqueous materials in both the terrestrial and estuarine
parts of the landscape. A major feature was that despite normal
(background) Be concentration in the sulfide-bearing sediments, the Be
leaching from these sediments after O2-exposure and acid sulfate soil development were extensive, with concentrations up to 76 μg L−1 in soil water, 39 μg L−1 in runoff and 12 μg L−1
in low-order streams. These high Be concentrations were mainly in the
solution form (i.e., passing a 1 kilodalton filter) and modelled to be
dominated by free Be2+. The extensive Be release within, and leaching from the acid sulfate soils was …


Senast uppdaterad 2019-22-11 vid 04:21