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Bioaccessibility of Ba, Cu, Pb, and Zn in urban garden and orchard soils.
Environ Pollut. 2016 Jan; 208(Pt A):145-152.EP

Abstract

Exposure of young children to toxic metals in urban environments is largely due to soil and dust ingestion. Soil particle size distribution and concentrations of toxic metals in different particle sizes are important risk factors in addition to bioaccessibility of these metals in the particles. Analysis of particle size distribution and metals concentrations for 13 soils, 12 sampled from urban gardens and 1 from orchard found that fine particles (<105 μm) comprised from 22 to 66% by weight of the tested soils, with Ba, Cu, Pb and Zn generally at higher concentrations in the finer particles. However, metal bioaccessibility was generally lower in finer particles, a trend most pronounced for Ba and Pb. Gastric was higher than gastrointestinal bioaccessibility for all metals except Cu. The lower bioaccessibility of Pb in urban garden soils compared to orchard soil is attributable to the higher organic matter content of the garden soils.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Cai M
National Key Laboratory of Water Environmental Simulation and Pollution Control; Guangdong Key Laboratory of Water and Air Pollution Control, South China Institute of Environmental Sciences, Ministry of Environmental Protection of the People's Republic of China, Guangzhou, No. 7 West Street, Yuancun, 510655, China.
McBride MB
Section of Soil and Crop Sciences, School of Integrative Plant Sciences, Cornell University, Ithaca, NY 14853, USA. Electronic address: mbm7@cornell.edu.
Li K
National Key Laboratory of Water Environmental Simulation and Pollution Control; Guangdong Key Laboratory of Water and Air Pollution Control, South China Institute of Environmental Sciences, Ministry of Environmental Protection of the People's Republic of China, Guangzhou, No. 7 West Street, Yuancun, 510655, China.

MeSH

Environmental MonitoringGardeningHeavy Metal PoisoningHumansMetals, HeavyParticle SizePoisoningSoilSoil Pollutants

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

26477581

Citation

Cai, Meifang, et al. "Bioaccessibility of Ba, Cu, Pb, and Zn in Urban Garden and Orchard Soils." Environmental Pollution (Barking, Essex : 1987), vol. 208, no. Pt A, 2016, pp. 145-152.
Cai M, McBride MB, Li K. Bioaccessibility of Ba, Cu, Pb, and Zn in urban garden and orchard soils. Environ Pollut. 2016;208(Pt A):145-152.
Cai, M., McBride, M. B., & Li, K. (2016). Bioaccessibility of Ba, Cu, Pb, and Zn in urban garden and orchard soils. Environmental Pollution (Barking, Essex : 1987), 208(Pt A), 145-152. https://doi.org/10.1016/j.envpol.2015.09.050
Cai M, McBride MB, Li K. Bioaccessibility of Ba, Cu, Pb, and Zn in Urban Garden and Orchard Soils. Environ Pollut. 2016;208(Pt A):145-152. PubMed PMID: 26477581.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bioaccessibility of Ba, Cu, Pb, and Zn in urban garden and orchard soils. AU - Cai,Meifang, AU - McBride,Murray B, AU - Li,Kaiming, Y1 - 2015/10/21/ PY - 2015/05/20/received PY - 2015/08/16/revised PY - 2015/09/25/accepted PY - 2015/10/20/entrez PY - 2015/10/20/pubmed PY - 2016/8/20/medline KW - Metal bioaccessibility KW - Orchard soil KW - Soil particle size distribution KW - Urban soil SP - 145 EP - 152 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 208 IS - Pt A N2 - Exposure of young children to toxic metals in urban environments is largely due to soil and dust ingestion. Soil particle size distribution and concentrations of toxic metals in different particle sizes are important risk factors in addition to bioaccessibility of these metals in the particles. Analysis of particle size distribution and metals concentrations for 13 soils, 12 sampled from urban gardens and 1 from orchard found that fine particles (<105 μm) comprised from 22 to 66% by weight of the tested soils, with Ba, Cu, Pb and Zn generally at higher concentrations in the finer particles. However, metal bioaccessibility was generally lower in finer particles, a trend most pronounced for Ba and Pb. Gastric was higher than gastrointestinal bioaccessibility for all metals except Cu. The lower bioaccessibility of Pb in urban garden soils compared to orchard soil is attributable to the higher organic matter content of the garden soils. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/26477581/Bioaccessibility_of_Ba_Cu_Pb_and_Zn_in_urban_garden_and_orchard_soils_ DB - PRIME DP - Unbound Medicine ER -