Bioavailability of lead and cadmium in soils artificially contaminated with smelter fly ash.
This study evaluated lead and cadmium uptake by maize grown on soils artificially spiked with smelter fly ash and possible changes in chemical fractionation of these metals in the soil. Maize grown on the less contaminated soil (1,466 mg Pb kg(-1); 19 mg Cd kg(-1)) did not exhibit any chlorosis/necrosis symptoms or lower biomass yields compared to the control. The addition of the chelating agent ethylenediaminetetraacetic acid increased lead uptake by maize, as expected. Neither maize cultivation nor the addition of the chelant influenced significantly the chemical fractionation of lead and cadmium in the soil during the experiment.
Department of Agro-Environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Kamýcká 129, 165 21, Prague 6, Czech Republic. komarek@af.czu.cz
Michael
M
Komárek
Vojtech
V
Ettler
Jirina
J
Száková
Ondrej
O
Sebek
Pavel
P
Tlustos
D018533:Biomass; D002104:Cadmium / Q000032:analysis / Q000378:metabolism*; D002244:Carbon / Q000032:analysis* / Q000737:chemistry; D005591:Chemical Fractionation; D060729:Coal Ash; D004785:Environmental Pollutants / Q000032:analysis / Q000378:metabolism*; D007854:Lead / Q000032:analysis / Q000378:metabolism*; D008669:Metallurgy; D052638:Particulate Matter / Q000032:analysis* / Q000737:chemistry; D012987:Soil; D003313:Zea mays / Q000254:growth & development / Q000378:metabolism*
D060729:Coal Ash; D004785:Environmental Pollutants; D052638:Particulate Matter; D012987:Soil; D002104:Cadmium; D007854:Lead; D002244:Carbon