Contamination, bioaccessibility and human health risk of heavy metals in exposed-lawn soils from 28 urban parks in southern China's largest city, Guangzhou
文献类型: 外文期刊
第一作者: Gu, Yang-Guang
作者: Gu, Yang-Guang;Lin, Qin;Gao, Yan-Peng;Gu, Yang-Guang;Lin, Qin;Gu, Yang-Guang;Lin, Qin
作者机构:
关键词: Urban park soils;Oral bioaccessibility;Health risk;Simple bioavailability extraction test (SBET);Heavy metals
期刊名称:APPLIED GEOCHEMISTRY ( 影响因子:3.524; 五年影响因子:3.932 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The total concentrations and oral bioaccessibility of heavy metals in surface-exposed lawn soils from 28 urban parks in Guangzhou were investigated, and the health risks posed to humans were evaluated. The descending order of total heavy metal concentrations was Fe > Mn > Pb > Zn > Cu > Cr > Ni > Cd, but Cd showed the highest percentage bioaccessibility (75.96%). Principal component analysis showed that Grouped Cd, Pb, Cr, Ni, Cu and Zn, and grouped Cr and Mn could be controlled two different types of human sources. Whereas, Ni and Fe were controlled by both anthropogenic and natural sources. The carcinogenic risk probabilities for Pb and Cr to children and adults were under the acceptable level (<1 x 10(-4)). Hazard Quotient value for each metal and Hazard Index values for all metals studied indicated no significant risk of non-carcinogenic effects to children and adults in Guangzhou urban park soils. (C) 2016 Elsevier Ltd. All rights reserved.
分类号: P59
- 相关文献
作者其他论文 更多>>
-
Histopathological and histochemical analysis of the digestive tract of adult horseshoe crabs under mercury stress
作者:Zhang, Wanling;Zhang, Wanling;Xie, Mujiao;Chen, Xiaohai;Ying, Ziwei;Bao, Yuyuan;Gu, Yang-Guang;Xie, Xiaoyong;Zhang, Wanling;Xie, Mujiao;Chen, Xiaohai;Ying, Ziwei;Bao, Yuyuan;Gu, Yang-Guang;Xie, Xiaoyong;Zhang, Wanling;Xie, Mujiao;Chen, Xiaohai;Ying, Ziwei;Bao, Yuyuan;Gu, Yang-Guang;Xie, Xiaoyong;Gu, Yang-Guang;Xie, Xiaoyong
关键词:Horseshoe crab; Mercury toxicity; Digestive tract; Histopathology and histochemistry; Mucous cells; Environmental pollution
-
Coastal redox shifts over the past 167 years and preservation of total organic carbon and total nitrogen
作者:Gu, Yang-Guang;Li, Hai-Song;Gu, Yang-Guang;Gu, Yang-Guang;Jordan, Richard W.;Su, Hong;Liang, Rui-Ze;Gu, Yang-Guang;Jiang, Shi-Jun
关键词:Sediment core; Redox condition; TOC preservation; TN preservation; Cu/Zn ratio; Xincun Lagoon
-
Impact of coastal industrialization and urbanization on marine phosphorus cycle: Insights from Daya Bay and Zhelin Bay
作者:Gu, Yang-Guang;Huang, Hong-Hui;Wang, Ya-Su;Jiang, Shi-Jun;Jordan, Richard W.;Gu, Yang-Guang;Jiang, Shi-Jun;Gu, Yang-Guang;Huang, Hong-Hui;Gu, Yang-Guang;Gu, Yang-Guang;Gao, Yan-Peng
关键词:Dissolved reactive phosphorus; Coastal ecosystems; Sediment dynamics; Sulfur compounds; Urbanization effects
-
Probabilistic risk assessment of fifteen metal(loid)s and their mixtures in surface sediment of Hongze Lake (China) using the diffusive gradients in thin films (DGT) technique
作者:Ma, Changjiang;Wang, Meirong;Gu, Yang-Guang;Gu, Yang-Guang;Jordan, Richard W.;Jiang, Shi-Jun;Gu, Yang-Guang
关键词:Inclusion-exclusion principle; Aquatic biota; DGT-labile metals; Ecological risk; Metal mixtures; Freshwater lake
-
Dynamics of metal immobilization in coastal mariculture sediments: Insights from DGT and DIFS modeling
作者:Gu, Yang-Guang;Gao, Yanpeng;Jordan, Richard W.;Jiang, Shi-Jun;Gu, Yang-Guang;Gu, Yang-Guang
关键词:Metals; Diffusive gradients in thin films (DGT); Kinetic modeling; Metal immobilization; Ecological risk; Zhelin Bay
-
Rising temperatures decrease rare earth element bioavailability and ecological risk in coastal sediments
作者:Gu, Yang-Guang;Huang, Hong-Hui;Gao, Yanpeng;Jordan, Richard W.;Jiang, Shi-Jun
关键词:Rare earth elements; Bioavailability; Ecotoxicological risk; Temperature effects; Diffusive gradients in thin films; Coastal sediments
-
Foodborne metal(loid) contamination from coastal petrochemical industrial zone to countryside and urban zones: Spatial distribution and public health implications
作者:Gao, Yanpeng;Weng, Weixin;Huang, Kai;Ren, Shixing;Ji, Yuemeng;Gao, Yanpeng;Weng, Weixin;Huang, Kai;Ren, Shixing;Ji, Yuemeng;Jordan, Richard W.;Jiang, Shi-Jun;Gu, Yang-Guang
关键词:Metal(loid) contamination; Double-sample food method; Carcinogenic risk (CR); Locally linear embedding (LLE); Random forest regression