TY - JOUR T1 - Occurrence of selected trace metals and their oral bioaccessibility in urban soils of kindergartens and parks in Bratislava (Slovak Republic) as evaluated by simple in vitro digestion procedure. AU - Hiller,Edgar, AU - Mihaljevič,Martin, AU - Filová,Lenka, AU - Lachká,Lucia, AU - Jurkovič,Ľubomír, AU - Kulikova,Tatsiana, AU - Fajčíková,Katarína, AU - Šimurková,Mária, AU - Tatarková,Veronika, Y1 - 2017/06/20/ PY - 2016/12/22/received PY - 2017/06/12/revised PY - 2017/06/13/accepted PY - 2017/6/25/pubmed PY - 2017/11/29/medline PY - 2017/6/25/entrez KW - Bioaccessibility KW - Contamination KW - Health risk KW - Metals KW - Urban soils SP - 611 EP - 621 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 144 N2 - A total of eighty surface soil samples were collected from public kindergartens and urban parks in the city of Bratislava, and the <150µm soil fraction was evaluated for total concentrations of five metals, Cd, Cu, Hg, Pb and Zn, their oral bioaccessibilities, non-carcinogenic and carcinogenic health risks to children, and lead isotopic composition. The mean metal concentrations in urban soils (0.29, 36.1, 0.13, 30.9 and 113mg/kg for Cd, Cu, Hg, Pb and Zn, respectively) were about two times higher compared with background soil concentrations. The order of bioaccessible metal fractions determined by Simple Bioaccessibility Extraction Test was: Pb (59.9%) > Cu (43.8%) > Cd (40.8%) > Zn (33.6%) > Hg (12.8%). Variations in the bioaccessible metal fractions were mainly related to the total metal concentrations in urban soils. A relatively wide range of lead isotopic ratios in urban soils (1.1598-1.2088 for [206]Pb/[207]Pb isotopic ratio) indicated a combination of anthropogenic and geogenic sources of metals in the soils. Lower values of [206]Pb/[207]Pb isotopic ratio in the city centre and similar spatial distribution of total metal concentrations, together with their increasing total concentrations in soils towards the city centre, showed that traffic and coal combustion in former times were likely the major sources of soil contamination. The non-carcinogenic and carcinogenic health risks to children due to exposure to metals in kindergarten and urban park soils were low, with hazard index and cancer risk values below the threshold values at all studied sites. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/28645424/Occurrence_of_selected_trace_metals_and_their_oral_bioaccessibility_in_urban_soils_of_kindergartens_and_parks_in_Bratislava__Slovak_Republic__as_evaluated_by_simple_in_vitro_digestion_procedure_ DB - PRIME DP - Unbound Medicine ER -