Bioavailability of arsenic, cadmium, iron and zinc in leafy vegetables amended with urban particulate matter suspension
Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
23044833
DOI
10.1002/jsfa.5903
Knihovny.cz E-zdroje
- Klíčová slova
- PBET, bioavailability, risk elements, urban particulate matter,
- MeSH
- arsen analýza MeSH
- Beta vulgaris chemie MeSH
- biologická dostupnost MeSH
- biomasa MeSH
- dieta MeSH
- kadmium analýza MeSH
- kořeny rostlin MeSH
- látky znečišťující půdu analýza MeSH
- látky znečišťující vzduch analýza MeSH
- lidé MeSH
- listy rostlin * MeSH
- pevné částice analýza MeSH
- půda chemie MeSH
- salát (hlávkový) chemie MeSH
- stopové prvky analýza toxicita MeSH
- tenké střevo MeSH
- žaludek MeSH
- železo analýza MeSH
- zinek analýza MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- arsen MeSH
- kadmium MeSH
- látky znečišťující půdu MeSH
- látky znečišťující vzduch MeSH
- pevné částice MeSH
- půda MeSH
- stopové prvky MeSH
- železo MeSH
- zinek MeSH
BACKGROUND: Urban particulate matter (PM) can affect green plants either via deposition on the above-ground biomass, where the contaminants can penetrate the leaf surface, or indirectly via soil-root interaction. This experiment assessed the potential risk of PM-derived risk elements contained in vegetables. The bioavailable portions of arsenic (As), cadmium (Cd), iron (Fe), and zinc (Zn) in leafy vegetables amended by PM via soil and/or foliar application were investigated in a model pot experiment, in which lettuce and chard were cultivated. RESULTS: By using the physiologically based extraction test simulating in vitro human digestive processes in the stomach and small intestine, the bioavailable portions of toxic elements from PM-amended plant biomass were extracted. Extractable portions of elements by a simulated gastric solution from biomass decreased for lettuce in the order Zn > Cd > As > Fe; while for chard, the order was As > Zn > Cd > Fe. No significant effects of PM physical fractions or soil were observed. CONCLUSIONS: Although the bioavailable element portions in the PM samples were lower compared to plants, the bioavailable element contents in foliar PM-amended plant leaves exceeded the control and soil PM amendment levels, even after biomass washing.
Citace poskytuje Crossref.org
