2003
Mobility, bioavailability and toxic effects of cadmium in soil samples.
PROKOP, Zbyněk, Pavel ČUPR, V. ZLEVOROVÁ-ZLÁMALÍKOVÁ, Josef KOMÁREK, Ladislav DUŠEK et. al.Základní údaje
Originální název
Mobility, bioavailability and toxic effects of cadmium in soil samples.
Název česky
mobilita, biodostupnost a toxické efekty kadmia v půdě
Autoři
PROKOP, Zbyněk (203 Česká republika, garant), Pavel ČUPR (203 Česká republika), V. ZLEVOROVÁ-ZLÁMALÍKOVÁ (203 Česká republika), Josef KOMÁREK (203 Česká republika), Ladislav DUŠEK (203 Česká republika) a Ivan HOLOUBEK (203 Česká republika)
Vydání
Environmental Research, 2003, 0013-9351
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.452
Kód RIV
RIV/00216224:14310/03:00008644
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Mobility; bioavailability and toxic effects of cadmium in soil samples.
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 14. 8. 2008 09:22, doc. RNDr. Pavel Čupr, Ph.D.
V originále
Total concentration is not a reliable indicator of metal mobility or bioavailability in soils. The physicochemical form determines the behavior of metals in soils and hence the toxicity toward terrestrial biota. The main objectives of this study were the application and comparison of three approaches for the evaluation of cadmium behavior in soil samples. The mobility and bioavailability of cadmium in five selected soil samples were evaluated using equilibrium speciation (Windermere humic aqueous model (WHAM), extraction procedures (Milli-Q water, DMSO, and DTPA), and a number of bioassays (Microtox, growth inhibition test, contact toxicity test, and respiration). The mobility, represented by the water-extractable fraction, corresponded well with the amount of cadmium in the soil solution, calculated using the WHAM (r2 0:96; Po0:001). The results of the ecotoxicological evaluation, which represent the bioavailable fraction of cadmium, correlated well with DTPA extractability and also with the concentration of free cadmium ion, which is recognized as the most bioavailable metal form. The results of the WHAM as well as the results of extraction experiments showed a strong binding of cadmium to organic matter and a weak sorption of cadmium to clay minerals.
Česky
Total concentration is not a reliable indicator of metal mobility or bioavailability in soils. The physicochemical form determines the behavior of metals in soils and hence the toxicity toward terrestrial biota. The main objectives of this study were the application and comparison of three approaches for the evaluation of cadmium behavior in soil samples. The mobility and bioavailability of cadmium in five selected soil samples were evaluated using equilibrium speciation (Windermere humic aqueous model (WHAM), extraction procedures (Milli-Q water, DMSO, and DTPA), and a number of bioassays (Microtox, growth inhibition test, contact toxicity test, and respiration). The mobility, represented by the water-extractable fraction, corresponded well with the amount of cadmium in the soil solution, calculated using the WHAM (r2 0:96; Po0:001). The results of the ecotoxicological evaluation, which represent the bioavailable fraction of cadmium, correlated well with DTPA extractability and also with the concentration of free cadmium ion, which is recognized as the most bioavailable metal form. The results of the WHAM as well as the results of extraction experiments showed a strong binding of cadmium to organic matter and a weak sorption of cadmium to clay minerals.
Návaznosti
| GA205/02/0896, projekt VaV |
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| GA525/00/D101, projekt VaV |
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| GA526/98/1147, projekt VaV |
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