Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Zheng, Jing1; Zhang, Shiyi1; Luo, Weikeng1; Yang, Qing2,3; Qin, Ruixin1,4; Tang, Bin1; Zhang, Yanqiang2,3; Xia, Xiaoping2 ; Luo, Xiaojun4,5; Mai, Bixian4,5; Yu, Yunjiang1
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| Tracing semi-quantitatively the absorption and removal of organic pollutants in human hair based on secondary ion mass spectrometry | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
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| ISSN | 0304-3894 |
| 2024-09-15 | |
| Volume | 477Pages:9 |
| DOI | 10.1016/j.jhazmat.2024.135278 |
| Language | 英语 |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| Abstract | Human hair has become a promising non-invasive matrix in assessing exposure to environmental organic pollutants (OPs). However, exogenous contaminants, which were absorbed into the hair via sweat, sebum, and air particles/dust, could contribute to OP levels in hair and interfere with the precise exposure assessment. So far, the microscopic mechanisms underlying the absorption of exogenous OPs into hair remain inadequately understood. This study focused on the in-situ investigation of the diffusion processes of exogenous OPs into the hair structure using secondary ion mass spectrometry (SIMS) and isotopic tracer techniques. Results showed that the relative signal intensities of deuterium-labeled tris(1,3-dichloro-2-propyl) phosphate (TDCPP), 1-hydroxypyrene (1-OH-Pry), and bisphenol A (BPA) in the hair cortex were notably elevated after a 6-hour exposure. Diffusion coefficients of contaminants were related to their molecular weight, and absorption volumes to their water solubility and molecular structures. Exposure duration and solvent influenced the rate of diffusion and absorption volumes. The distribution of deuterium-labeled molecules in exposed hair samples after washing with two different solvents (acetone or water) was similar to that before washing. Our findings revealed the diffusion of OPs in hair cross-sections, indicating exogenous contributions to contaminants that are biologically incorporated into the hair. |
| Keyword | Human hair Organic pollutants Distribution Cross-section in situ micro-analysis |
| WOS ID | WOS:001279093700001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/78208 |
| Collection | 同位素地球化学国家重点实验室 |
| Corresponding Author | Zhang, Shiyi; Luo, Weikeng |
| Affiliation | 1.Minist Ecol & Environm, South China Inst Environm Sci, State Environm Protect Key Lab Environm Pollut Hlt, Res Grp Emerging Contaminants, Guangzhou 510655, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Zheng, Jing,Zhang, Shiyi,Luo, Weikeng,et al. Tracing semi-quantitatively the absorption and removal of organic pollutants in human hair based on secondary ion mass spectrometry[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,477:9. |
| APA | Zheng, Jing.,Zhang, Shiyi.,Luo, Weikeng.,Yang, Qing.,Qin, Ruixin.,...&Yu, Yunjiang.(2024).Tracing semi-quantitatively the absorption and removal of organic pollutants in human hair based on secondary ion mass spectrometry.JOURNAL OF HAZARDOUS MATERIALS,477,9. |
| MLA | Zheng, Jing,et al."Tracing semi-quantitatively the absorption and removal of organic pollutants in human hair based on secondary ion mass spectrometry".JOURNAL OF HAZARDOUS MATERIALS 477(2024):9. |
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