Arsenic transfer and impacts on snails exposed to stabilized and untreated As-contaminated soils.
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 (microg 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.
Coeurdassier
M
M
Department Chrono-Environment, UMR UFC/CNRS 6249 UsC INRA, University of Franche-Comté, Place Leclerc, F-25030 Besançon Cedex, France. michael.coeurdassier@univ-fcomte.fr
Scheifler
R
R
Mench
M
M
Crini
N
N
Vangronsveld
J
J
de Vaufleury
A
A
D000538:Aluminum Silicates / Q000737:chemistry; D000818:Animals; D001151:Arsenic / Q000032:analysis / Q000493:pharmacokinetics / Q000633:toxicity*; D001530:Belgium; D002244:Carbon / Q000737:chemistry; D060729:Coal Ash; D004784:Environmental Monitoring; D052918:Environmental Restoration and Remediation / Q000379:methods*; D020387:Food Chain; D006372:Helix, Snails / Q000187:drug effects* / Q000378:metabolism; D007501:Iron / Q000737:chemistry; D018545:Lactuca / Q000737:chemistry; D052638:Particulate Matter / Q000737:chemistry; D018570:Risk Assessment; D012621:Seasons; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis / Q000493:pharmacokinetics / Q000633:toxicity*
D000538:Aluminum Silicates; D060729:Coal Ash; D052638:Particulate Matter; D012987:Soil; D012989:Soil Pollutants; C436844:beringite; D002244:Carbon; D007501:Iron; D001151:Arsenic