Affordable Access

Publisher Website

Arsenic transfer and impacts on snails exposed to stabilized and untreated As-contaminated soils

Authors
Journal
Environmental Pollution
0269-7491
Publisher
Elsevier
Publication Date
Volume
158
Issue
6
Identifiers
DOI: 10.1016/j.envpol.2010.03.008
Keywords
  • Bioavailability
  • Cantareus Aspersus
  • Helix Aspersa
  • Soil Pollution
  • Remediation

Abstract

Abstract An As-contaminated soil (Unt) was amended with either iron grit (Z), a coal fly ash (beringite, B) or B + Z (BZ) and placed in lysimeters in 1997. An uncontaminated soil (R) was also studied. In summer and autumn 2003, lettuces were cultivated in the lysimeters and snails were caged for one month. Lettuce As concentrations were higher during the summer, while no differences occurred in snails between seasons. Snail As concentrations (μg g −1 DW) ranged from 2.5 to 7.0 in B, Z and BZ, and peaked at 17.5 in Unt. In summer, snail survival was affected in Unt and Z compared to R and B while no mortality was noticed in autumn. Snail growth decreased only in B, BZ and Unt in autumn. Snail As concentrations suggest a risk for their predators even on the remediated soils.

There are no comments yet on this publication. Be the first to share your thoughts.