Morphology, chemistry and distribution of neoformed spherulites in agricultural land affected by metallurgical point-source pollution

Autor: Toine Jongmans, Pierre Chevallier, Sophie Leguédois, Folkert van Oort
Přispěvatelé: Unité de recherche Science du Sol (USS), Institut National de la Recherche Agronomique (INRA), Laboratory of Soil Science and Geology, Alterra Wageningen University and Research Centre, Démantèlement de l'installation nucléaire de base 106 (DINB1), Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2004
Předmět:
Health
Toxicology and Mutagenesis
010501 environmental sciences
Toxicology
01 natural sciences
Spherulites
Soil
Soil Pollutants
Chemical composition
media_common
Synchrotron radiation
Chemistry
Agriculture
Phosphorus
04 agricultural and veterinary sciences
General Medicine
Pollution
Soil contamination
Zinc
Metallurgy
Soil horizon
france
pb
Environmental Monitoring
Soil test
microprobe
media_common.quotation_subject
Iron
Mineralogy
metals
Weathering
Heavy metal distribution
Industrial waste
Point source pollution
Metals
Heavy
Electron microscopy
sequential extraction
Particle Size
0105 earth and related environmental sciences
Manganese
lead
WIMEK
Laboratorium voor Bodemkunde en geologie
exafs spectroscopy
Laboratory of Soil Science and Geology
15. Life on land
smelter-contaminated soils
[SDE.ES]Environmental Sciences/Environmental and Society
Microscopy
Electron
speciation
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
zn
Calcium
Synchrotrons
Zdroj: Environmental Pollution
Environmental Pollution, Elsevier, 2004, 130, pp.135-148. ⟨10.1016/j.envpol.2003.12.023⟩
Environmental Pollution, 130(2), 135-148
Environmental Pollution 130 (2004) 2
ISSN: 0269-7491
1873-6424
DOI: 10.1016/j.envpol.2003.12.023⟩
Popis: 41 ref. doi:10.1016/j.envpol.2003.12.023; International audience; Metal distribution patterns in superficial soil horizons of agricultural land affected by metallurgical point-source pollution were studied using optical and electron microscopy, synchrotron radiation and spectroscopy analyses. The site is located in northern France, at the center of a former entry lane to a bunker of World War II, temporarily paved with coarse industrial waste fragments and removed at the end of the war. Thin sections made from undisturbed soil samples from A and B horizons were studied. Optical microscopy revealed the occurrence of yellow micrometer-sized (Ap horizon) and red decamicrometer-sized spherulites (AB, B1g horizons) as well as distinct distribution patterns. The chemical composition of the spherulites was dominated by Fe, Mn, Zn, Pb, Ca, and P. Comparison of calculated Zn stocks, both in the groundmass and in spherulites, showed a quasi-exclusive Zn accumulation in these neoformed features. Their formation was related to several factors: (i) liberation of metal elements due to weathering of waste products, (ii) Ca and P supply from fertilizing practices, (iii) co-precipitation of metal elements and Ca and P in a porous soil environment, after slow exudation of a supersaturated soil solution in more confined mineral media.
Databáze: OpenAIRE
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