干旱区生态环境知识资源中心(Arid): Bioaccessibility of potentially toxic elements in mine residue particles

Arid

DOI	10.1039/d0em00447b
	Bioaccessibility of potentially toxic elements in mine residue particles
	Jesus Eulises, Corona-Sanchez; Gonzalez-Chavez, Ma Del Carmen A.; Carrillo-Gonzalez, Rogelio; Luis Garcia-Cue, Jose; Fernandez-Reynoso, Demetrio S.; Noerpel, Matthew; Scheckel, Kirk G.
通讯作者	Carrillo-Gonzalez, R (corresponding author), Colegio Postgrad, Programa Edafol, Mexico Texcoco 36-5 Km, Texcoco 56230, Mexico.
来源期刊	ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
ISSN	2050-7887
EISSN	2050-7895
出版年	2021
卷号	23 期号:2 页码:367-380
英文摘要	Mining companies used to abandon tailing heaps in countryside regions of Mexico and other countries. Mine residues (MRs) contain a high concentration of potentially toxic elements (PTE). The wind can disperse dust particles (<100 mu m) and once suspended in the atmosphere, can be ingested or inhaled; this is a common situation in arid climates. Nowadays, there is little information on the risk of exposure to PTEs from particulate matter dispersed by wind. The pseudo-total PTE in bulk and fractionated MR after aqua regia digestion, the inhalable bioaccessibility with Gamble solution (pH = 7.4), and the gastric bioaccessibility with 0.4 M glycine solution at pH 1.5 were determined. As and Pb chemical species were identified by X-ray absorption near-edge structure (XANES) spectroscopy. The highest rate of dispersion was observed with 74-100 mu m particles (104 mg m(-2) s(-1)); in contrast, particles <44 mu m had the lowest rate (26 mg m(-2) s(-1)). The highest pseudo-total As (35 961 mg kg(-1)), Pb (3326 mg kg(-1)), Cd (44 mg kg(-1)) and Zn (up to 4678 mg kg(-1)) concentration was in the <20 mu m particles and As in the 50-74 mu m (40 236 mg kg(-1)) particles. The highest concentration of inhaled bioaccessible As (343 mg kg(-1)) was observed in the <20 mu m fraction and the gastric bioaccessible As was 744 mg kg(-1), Pb was 1396 mg kg(-1), Cd was 19.2 mg kg(-1), and Zn was 2048 mg kg(-1). The predominant chemical As species was arsenopyrite (92%), while 54% of Pb was in the adsorbed form. Erodible particle matter is a potential risk for humans in case of inhalation or ingestion.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000625246400012
WOS类目	Chemistry, Analytical ; Environmental Sciences
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367901
作者单位	[Jesus Eulises, Corona-Sanchez; Gonzalez-Chavez, Ma Del Carmen A.; Carrillo-Gonzalez, Rogelio] Colegio Postgrad, Programa Edafol, Mexico Texcoco 36-5 Km, Texcoco 56230, Mexico; [Luis Garcia-Cue, Jose] Colegio Postgrad, Programa Estadist, Mexico Texcoco 36-5 Km, Texcoco 56230, Mexico; [Fernandez-Reynoso, Demetrio S.] Colegio Postgrad, Programa Hidrociencias, Mexico Texcoco 36-5 Km, Texcoco 56230, Mexico; [Noerpel, Matthew; Scheckel, Kirk G.] US EPA, Off Res & Dev, Ctr Environm Solut & Emergency Response, Cincinnati, OH 45268 USA
推荐引用方式 GB/T 7714	Jesus Eulises, Corona-Sanchez,Gonzalez-Chavez, Ma Del Carmen A.,Carrillo-Gonzalez, Rogelio,et al. Bioaccessibility of potentially toxic elements in mine residue particles[J],2021,23(2):367-380.
APA	Jesus Eulises, Corona-Sanchez.,Gonzalez-Chavez, Ma Del Carmen A..,Carrillo-Gonzalez, Rogelio.,Luis Garcia-Cue, Jose.,Fernandez-Reynoso, Demetrio S..,...&Scheckel, Kirk G..(2021).Bioaccessibility of potentially toxic elements in mine residue particles.ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,23(2),367-380.
MLA	Jesus Eulises, Corona-Sanchez,et al."Bioaccessibility of potentially toxic elements in mine residue particles".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 23.2(2021):367-380.