Phytotoxicity of pyrite and arsenopyrite biodegradation products

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Authors

MANDL Martin BARTÁKOVÁ Iva KUMMEROVÁ Marie

Year of publication 2003
Type Article in Proceedings
Conference 7th Conference on Environment and Mineral Processing
MU Faculty or unit

Faculty of Science

Citation
Field Physiology
Keywords arsenopyrite oxidation; iron; Lactuca sativa; phytotoxicity; pyrite oxidation
Description Phytotoxicity of sulfuric acid, sulfates, iron(III) and arsenic(III,V) as the products of pyrite and arsenopyrite biodegradation was studied using Lactuca sativa root elongation and seed germination under acid pH. Ionic strength appeared to be an important inhibitory factor. Iron hydrolysis and solubility affected the fytotoxicity determination. These interference factors represent a general problem of toxicity testing in the case of some other heavy metals.
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