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Wei J, Wang Y, Kong H, Wu J, Jiang L, Pan B, Guo S, Yang F, Liu G, Qiu F, Guo J, Zhang Y, Nie J, Yang J. Association between plasma CC16 levels and lung function changes in coke oven workers: A cohort study from 2014 to 2023. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 284:117002. [PMID: 39241606 DOI: 10.1016/j.ecoenv.2024.117002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 08/31/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
Club cell secretory protein (CC16) is considered a biological marker indicating lung epithelial and lung permeability. The joint effect of polycyclic aromatic hydrocarbons (PAHs) exposure on CC16 levels and the association between CC16 levels and long-term lung function changes lacks epidemiological evidence. To investigate the effect of PAHs exposure on plasma CC16 levels and the association between CC16 levels and long-term lung function changes, this study enrolled 307 coke oven workers in 2014, measured their baseline concentrations of urinary PAHs metabolites and plasma CC16, with follow-up after nine years. Bayesian kernel machine regression (BKMR) was employed to analyze the effect of mixed PAHs metabolites. The dose-effect association between baseline CC16 levels and lung function during 2014-2023 was explored using restricted cubic spline (RCS) models, and stratified analysis investigated the effect modification of PAHs exposure and smoking status on this association. The median age of the participants was 40 years, with 93.81 % male. The results showed that plasma CC16 levels decreased by 2.02 ng/mL (95 % CI: -3.77, -0.27) among all participants and FVC (% predicted) decreased by 2.87 % (95 % CI: -5.59, -0.14) in the low CC16 group with each unit increase in log-transformed 2-OHNAP. The BKMR model revealed a negative association between PAHs metabolites and both plasma CC16 levels and FVC (% predicted). Plasma CC16 decreased by 1.05 units when all PAHs metabolites at P65 compared to those at P50. After 9 years of follow-up, baseline CC16 levels were significantly associated with follow-up FVC (% predicted), FEV1 (% predicted), and small airway dysfunction risk. Furthermore, high PAHs exposure and smoking enhanced the association between CC16 and lung function. In conclusion, PAHs exposure decreases CC16 levels, and coking workers with low baseline CC16 levels may experience more severe future lung function decline.
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Affiliation(s)
- Jiajun Wei
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Yong Wang
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Hongyue Kong
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Jinyu Wu
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Liuquan Jiang
- Xishan Coal Electricity Corporation Occupational Disease Prevention and Control Institute, Taiyuan City, Shanxi Province 030053, China
| | - Baolong Pan
- Sixth Hospital of Shanxi Medical University (General Hospital of Tisco), Taiyuan City, Shanxi Province 030001, China
| | - Shugang Guo
- Shanxi Provincial Center for Disease Control and Prevention, Taiyuan City, Shanxi Province 030001, China
| | - Fan Yang
- Xishan Coal Electricity Corporation Occupational Disease Prevention and Control Institute, Taiyuan City, Shanxi Province 030053, China
| | - Gaisheng Liu
- Xishan Coal Electricity Corporation Occupational Disease Prevention and Control Institute, Taiyuan City, Shanxi Province 030053, China
| | - Fengyu Qiu
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Jingxuan Guo
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Yu Zhang
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Jisheng Nie
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China
| | - Jin Yang
- MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, NHC Key Laboratory of Pneumoconiosis, Department of Occupational Health, School of Public Health, Shanxi Medical University, Shanxi Key Laboratory of Environmental Health Impairment and Prevention, Xinjiannan Road 56, Taiyuan City, Shanxi Province 030001, China.
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Rashid S, Tak UN, Lone MS, Chat OA, Bhat PA, Ahanger FA, Bhat IA, Dar AA. Effect of in situ mixed micellization of ester-functionalized gemini surfactant at different pHs on solubilization and cosolubilization of various polycyclic aromatic hydrocarbons of varying hydrophobicities. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122489. [PMID: 37666460 DOI: 10.1016/j.envpol.2023.122489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/01/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
A pH controlled cleavability unfolds the 3-in-1 surfactant feature of an ester-bonded gemini surfactant, 2, 2'-[(oxybis (ethane-1,2-diyl))bis (oxy)]bis (N-hexadecyl-N,Ndimethyl-2-oxoethanaminium) dichloride (C16-C4O2-C16), by reinforcing in-situ mixed micellization between cleaved components at non-neutral pH (pH 3,12). The triplicity is assigned to two mixed-micelle variants at pH 3 and pH 12 besides the unhydrolyzed C16-C4O2-C16 at pH 7. The pH-controlled aggregation of such trichotomic surfactant dramatically enhances the micellar solubilization/cosolubilization of PAHs viz. naphthalene (Np), phenanthrene (Ph), pyrene (Py), perylene (Pe). The cosolubilization of binary/ternary PAH mixtures in such remarkable micellar assemblies at pH 3, 7 and 12 yields intriguing synergistic or antagonistic solubility outcomes correlated to PAH-PAH and PAH-micelle interactions. This study provides valuable insights into the potential applications of the ester-bonded gemini surfactant for the cosolubilization of undesirable hydrophobic compounds at natural sites having variable pH.
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Affiliation(s)
- Showkat Rashid
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India
| | - Umar Nabi Tak
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India
| | - Mohd Sajid Lone
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India
| | - Oyais Ahmad Chat
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India; Department of Chemistry, Government Degree College Kupwara, J&K, 193222, India
| | - Parvaiz Ahmad Bhat
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India; Department of Chemistry, Government Degree College Pulwama, 192301, J & K, India
| | - Firdaus Ahmad Ahanger
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India
| | - Imtiyaz Ahmad Bhat
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India
| | - Aijaz Ahmad Dar
- Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, 190006, J&K, India.
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Ravanbakhsh M, Yousefi H, Lak E, Ansari MJ, Suksatan W, Qasim QA, Asban P, Kianizadeh M, Mohammadi MJ. Effect of Polycyclic Aromatic Hydrocarbons (PAHs) on Respiratory Diseases and the Risk Factors Related to Cancer. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2149569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Majid Ravanbakhsh
- Department of Physiotherapy, School of Rehabilitation Sciences, Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Homayon Yousefi
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Elena Lak
- Department of Internal Medicine, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Wanich Suksatan
- Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, Thailand
| | | | - Parisa Asban
- Student of Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahsa Kianizadeh
- Department of Environmental Health Engineering, School of Public Health and Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Javad Mohammadi
- Department of Environmental Health Engineering, School of Public Health and Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Chen T, Hu X, Chen Z, Cui X. The Total Solubility of the Co-Solubilized PAHs with Similar Structures Indicated by NMR Chemical Shift. Molecules 2021; 26:molecules26092793. [PMID: 34068475 PMCID: PMC8125976 DOI: 10.3390/molecules26092793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
The synergism/inhibition level, solubilization sites and the total solubility (St) of co-solubilization systems of phenanthrene, anthracene and pyrene in Tween 80 and sodium dodecyl sulfate (SDS) are studied by 1H-NMR, 2D nuclear overhauser effect spectroscopy (NOESY) and rotating frame overhauser effect spectroscopy (ROESY). In Tween 80, inhibition for phenanthrene, anthracene and pyrene is observed in most binary and ternary systems. However, in SDS, synergism is predominant. After analysis, we find that the different synergism or inhibition situation between Tween 80 and SDS is related to the different types of surfactants used and the resulting different co-solubilization mechanisms. In addition, we also find that three polycyclic aromatic hydrocarbons (PAHs) have similar solubilization sites in both Tween 80 and SDS, which are almost unchanged in co-solubilization systems. Due to the similar solubilization sites, the chemical shift changes of surfactant and PAH protons follow the same pattern in all solubilization systems, and the order of chemical shift changes is consistent with the order of changes in the St of PAHs. In this case, it is feasible to evaluate St of PAHs by chemical shift. In both Tween 80 and SDS solutions, the ternary solubilization system has relatively high St rankings. Therefore, in practical applications, a good overall solubilization effect can be expected.
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Chen YY, Kao TW, Wang CC, Chen YJ, Wu CJ, Lai CH, Chen WL. Polycyclic aromatic hydrocarbon metabolites and mortality risk in an adult population. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:37-45. [PMID: 32710234 DOI: 10.1007/s10653-020-00663-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Occupational polycyclic aromatic hydrocarbons (PAHs) exposure has been shown to increase the risk of various cancers and may be associated with carcinogenic mortality. However, no study has explored the relationship between environmental PAH exposure and mortality in general population. The aim of our study was to explore the association between PAH exposure and all-cause, cardiovascular, and cancer mortality in a general US adult population. We analyzed data from the National Health and Nutrition Examination Survey (NHANES 2001-2006) based on the information in this dataset on 692 males and 717 females. PAH exposure was detected using biomarkers from urine samples. Follow-up data on mortality were derived from initial examination of the subjects until death or 31 December 2006 in the NHANES database. We calculated hazard ratios (HRs) of PAH metabolites among all-cause, cardiovascular, and cancer mortality using the multivariate Cox proportional hazards regression model after adjusting for covariates. Among males, 3-phenanthrene was positively associated with increased risk of all-cause mortality (HR 1.043, 95%CI 1.019-1.066). Female participants with higher 2-napthol (HR 1.043, 95%CI 1.014-1.072), 3-fluorene (HR 2.159, 95%CI 1.233-3.779), and 1-phenanthrene (HR = 1.259, 95%CI 1.070-1.481) levels had increased all-cause mortality. In addition, high 3-phenanthrene (HR 1.333, 95%CI 1.008-1.763) and 1-phenanthrene (HR 1.463, 95%CI 1.126-1.900) levels increased the risk of cardiovascular mortality. However, there were no significant findings for cancer mortality in both genders. Environmental PAH exposure among the adult population is associated with non-carcinogenic but not cancer mortality. Future studies are warranted to determine the underlying mechanisms related to these findings.
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Affiliation(s)
- Yuan-Yuei Chen
- Department of Pathology, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
- Department of Pathology, Tri-Service General Hospital Songshan Branch, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Tung-Wei Kao
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Number 325, Section 2, Chang-gong Rd, Nei-Hu District, Taipei, 114, Taiwan, Republic of China
| | - Chung-Ching Wang
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Ying-Jen Chen
- Department of Ophthalmology, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Chen-Jung Wu
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
- Division of Family Medicine, Department of Community Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan, Republic of China
| | - Ching-Huang Lai
- School of Public Health, National Defense Medical Center, Taipei, Republic of China
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China.
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Number 325, Section 2, Chang-gong Rd, Nei-Hu District, Taipei, 114, Taiwan, Republic of China.
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan, Republic of China.
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Wang F, Liu J, Zeng H. Interactions of particulate matter and pulmonary surfactant: Implications for human health. Adv Colloid Interface Sci 2020; 284:102244. [PMID: 32871405 PMCID: PMC7435289 DOI: 10.1016/j.cis.2020.102244] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 12/22/2022]
Abstract
Particulate matter (PM), which is the primary contributor to air pollution, has become a pervasive global health threat. When PM enters into a respiratory tract, the first body tissues to be directly exposed are the cells of respiratory tissues and pulmonary surfactant. Pulmonary surfactant is a pivotal component to modulate surface tension of alveoli during respiration. Many studies have proved that PM would interact with pulmonary surfactant to affect the alveolar activity, and meanwhile, pulmonary surfactant would be adsorbed to the surface of PM to change the toxic effect of PM. This review focuses on recent studies of the interactions between micro/nanoparticles (synthesized and environmental particles) and pulmonary surfactant (natural surfactant and its models), as well as the health effects caused by PM through a few significant aspects, such as surface properties of PM, including size, surface charge, hydrophobicity, shape, chemical nature, etc. Moreover, in vitro and in vivo studies have shown that PM leads to oxidative stress, inflammatory response, fibrosis, and cancerization in living bodies. By providing a comprehensive picture of PM-surfactant interaction, this review will benefit both researchers for further studies and policy-makers for setting up more appropriate regulations to reduce the adverse effects of PM on public health.
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Affiliation(s)
- Feifei Wang
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China; Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Jifang Liu
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China.
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
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Sonwani RK, Giri BS, Jaiswal RP, Singh RS, Rai BN. Performance evaluation of a continuous packed bed bioreactor: Bio-kinetics and external mass transfer study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110860. [PMID: 32563162 DOI: 10.1016/j.ecoenv.2020.110860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
The biodegradation of naphthalene using low-density polyethylene (LDPE) immobilized Exiguobacterium sp. RKS3 (MG696729) in a packed bed bioreactor (PBBR) was studied. The performance of a continuous PBBR was evaluated at different inlet flow rates (IFRs) (20-100 mL/h) under 64 days of operation. The maximum naphthalene removal efficiency (RE) was found at low IFR, and it further decreased with increasing IFRs. In a continuous PBBR, the external mass transfer (EMT) aspect was analysed at various IFRs, and experimental data were interrelated between Colburn factor (JD) and Reynolds number (NRe) as [Formula: see text] . A new correlation [Formula: see text] was obtained to predict the EMT aspect of naphthalene biodegradation. Andrew-Haldane model was used to evaluate the bio-kinetic parameters of naphthalene degradation, and kinetic constant νmax, Js, and Ji were found as 0.386 per day, 13.6 mg/L, and 20.54 mg/L, respectively.
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Affiliation(s)
- Ravi Kumar Sonwani
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Balendu Shekhar Giri
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Ravi Prakash Jaiswal
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Ram Sharan Singh
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Birendra Nath Rai
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, Uttar Pradesh, India.
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Liu Y, Li Z, Zhang Z, Zhao T, Wang M, Wang X. Determination of Urinary Hydroxyl PAHs Using Graphene Oxide@Diatomite Based Solid-Phase Extraction and High-Performance Liquid Chromatography. Molecules 2019; 24:molecules24224186. [PMID: 31752256 PMCID: PMC6891718 DOI: 10.3390/molecules24224186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/10/2019] [Accepted: 11/18/2019] [Indexed: 11/16/2022] Open
Abstract
A diatomite supported graphene oxide composite (GO@Dt–NH2) was fabricated and explored as a solid-phase extraction adsorbent coupled with high performance liquid chromatography to determine the trace hydroxyl polycyclic aromatic hydrocarbons (2-hydroxy-naphthalene, 2-hydroxy-fluorene, 1-hydroxy-phenanthrene, and 1-hydroxy-pyrene) in urine samples. The fabricated composites were characterized by X-ray powder diffractometry and scanning electron microscopy. GO@Dt–NH2 offered enhanced adsorption affinity towards the analytes compared with the bare diatomite. The amount of graphene oxide and the factors affecting solid-phase extraction were investigated in detail. Under the optimized conditions, the method gave good linearity (0.30–200 ng/mL) and a low detection limit (0.10–0.15 ng/mL) for the hydroxyl polycyclic aromatic hydrocarbons. The average recovery for spiked urine samples with three levels ranged from 90.6% to 100%. The intra-day and inter-day relative standard deviations were in the range of 1.8–6.4% and 2.7–11.8%, respectively. Besides, the GO@Dt–NH2 provided enrichment factors of 18–20 and superior purification ability. The developed method was successfully applied to the determination of hydroxyl polycyclic aromatic hydrocarbons in urine samples from smoking volunteers.
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Affiliation(s)
| | | | | | | | - Manman Wang
- Correspondence: (M.W.); (X.W.); Tel.: +86-031-5880-5576 (M.W.); +86-031-5880-5576 (X.W.)
| | - Xuesheng Wang
- Correspondence: (M.W.); (X.W.); Tel.: +86-031-5880-5576 (M.W.); +86-031-5880-5576 (X.W.)
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Tetz G, Tetz V. Tetz's theory and law of longevity. Theory Biosci 2018; 137:145-154. [PMID: 29978435 PMCID: PMC6208853 DOI: 10.1007/s12064-018-0267-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 06/29/2018] [Indexed: 11/30/2022]
Abstract
Here, we present new theory and law of longevity intended to evaluate fundamental factors that control lifespan. This theory is based on the fact that genes affecting host organism longevity are represented by subpopulations: genes of host eukaryotic cells, commensal microbiota, and non-living genetic elements. Based on Tetz's theory of longevity, we propose that lifespan and aging are defined by the accumulation of alterations over all genes of macroorganism and microbiome and the non-living genetic elements associated with them. Tetz's law of longevity states that longevity is limited by the accumulation of alterations to the limiting value that is not compatible with life. Based on theory and law, we also propose a novel model to calculate several parameters, including the rate of aging and the remaining lifespan of individuals. We suggest that this theory and model have explanatory and predictive potential to eukaryotic organisms, allowing the influence of diseases, medication, and medical procedures to be re-examined in relation to longevity. Such estimates also provide a framework to evaluate new fundamental aspects that control aging and lifespan.
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Affiliation(s)
- George Tetz
- Human Microbiology Institute, 423 West 127 Street, New York, NY, 10027, USA.
| | - Victor Tetz
- Human Microbiology Institute, 423 West 127 Street, New York, NY, 10027, USA
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Liang X, Guo C, Liu S, Dang Z, Wei Y, Yi X, Abel S. Cosolubilization of phenanthrene and pyrene in surfactant micelles: Experimental and atomistic simulations studies. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.123] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Mizher IY, Fawaqa SI, Sweileh WM. Prevalence and personal attitudes towards tobacco smoking among Palestinian healthcare professionals: a cross-sectional study. Addict Sci Clin Pract 2018; 13:17. [PMID: 30053911 PMCID: PMC6063017 DOI: 10.1186/s13722-018-0119-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/19/2018] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Little is known about tobacco smoking behaviors of healthcare professionals in the Middle East where stress conditions are high and tobacco smoking regulations are either absent or loose. The objective of this study was to identify the prevalence of and attitudes toward tobacco smoking among healthcare professionals. METHODS Trained senior medical students conducted a cross-sectional survey study in all governmental and non-governmental hospitals in Nablus city (Palestine) using a self-administered questionnaire containing both open-and closed-ended questions. RESULTS In total, 708 healthcare professionals participated in the study. The mean age of the participants was 31.4 ± 9.6 years. Forty-five (6.4%) participants were ex-smokers, 419 (59.2%) were never smokers, and 244 (34.5%) were current tobacco smokers. One hundred and forty-two (58.2%) tobacco smokers reported that they smoke inside the hospital and 119 (48.8%) reported that they think of quitting smoking. Univariate analysis indicated that age, gender, marital status, family history of tobacco smoking, country of graduation, and night shifts were significantly associated with tobacco smoking status. No significant difference (p = 0.156) in prevalence of tobacco smoking was found between physicians and other healthcare professionals. Binary logistic regression indicated that older age, male gender, and having a positive family history of smoking were significant predictors of being a current tobacco smoker. Non-smokers had significantly higher frequency of patient counseling than current smokers. CONCLUSION Palestinian healthcare professionals have relatively higher prevalence of tobacco smoking compared to the general population. Urgent national intervention and strict implementation of "No Smoking Law" in health institutions and in public places are needed to root out this negative behavior.
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Affiliation(s)
- Isra Y. Mizher
- College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
| | - Shahd I. Fawaqa
- College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
| | - Waleed M. Sweileh
- Department of Physiology, Pharmacology, and Toxicology, College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839 Palestine
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Kalugina OV, Mikhailova TA, Shergina OV. Contamination of Scots pine forests with polycyclic aromatic hydrocarbons on the territory of industrial city of Siberia, Russia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:21176-21184. [PMID: 29770943 DOI: 10.1007/s11356-018-2230-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 05/04/2018] [Indexed: 06/08/2023]
Abstract
Anthropogenic contamination with polycyclic aromatic hydrocarbons (PAH) coming from a powerful aluminum smelter has been estimated by the accumulation of these substances (17 substances: phenanthrene, fluoranthene, pyrene, chrysene, acenaphthylene, acenaphthene, anthracene, fluorene, benz[а]anthracene, benz[b]fluoranthene, benz[k]fluoranthene, benz[а]pyrene, benz[е]pyrene, perylene, indeno[1,2,3-c,d]pyrene, benz[g,h,i]perylene, dibenz[a,h]anthracene) in needles of Scots pine (Pinus sylvestris L.) in the residential areas of Bratsk, East Siberia, Russia. It has been found that the total PAH amount reaches the maximum values (982 ng/g) in the needles of trees growing in a residential zone, remote from the smelter up to 10 km (Central Urban District), where more than half of the city's population lives. On the territory remote up to 25 km (Padunsky District), PAH needle levels decline, but are still 14.5-17.5 times higher than the background ones and at a distance of 45 km (Pravoberezhny District), they still exceed background levels (30 ng/g) by 4.7-8.1 times. Qualitative analysis of PAH showed the prevalence (up to 90% of the total amount) of 3-4 ring PAHs in pine needles on the entire studied territory. PAH concentrations increase when approaching the smelter with the highest values in the Central City District. Within the urban area, the content of PAHs with 5-6 rings (benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene (B[a]P), benz[a]anthracene, dibenz[a,h]anthracene, indeno[1,2,3-c,d]pyrene, benzo[g,h,i]perylene) is also significantly increased. In the Central District, needle concentration of B[a]P, which is a class 1 carcinogen, exceeds the background one by 22 times, the Padunsky District-by 7 times, and the Pravoberezhny District-by 3 times. In the territories of the Central Districts, needle level of perylene, which is a marker of territory pollution by aluminum smelter emissions, is 18 times, the Padunsky District-by 10 times, Pravoberezhny District-by 2.5-3 times higher than in the background, where the perylene level is below the detection limit (< 0.2 ng/g).
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Affiliation(s)
- Olga Vladimirovna Kalugina
- The Natural and Anthropogenic Ecosystems Laboratory, Department of Ecology, Siberian Instititue of Plant Physiology and Biochemistry Siberian Branch of the Russian Academy of Sciences, 132, Lermontova str., 664033, Irkutsk, Russia.
| | - Tatiana Alekseevna Mikhailova
- The Natural and Anthropogenic Ecosystems Laboratory, Department of Ecology, Siberian Instititue of Plant Physiology and Biochemistry Siberian Branch of the Russian Academy of Sciences, 132, Lermontova str., 664033, Irkutsk, Russia
| | - Olga Vladimirovna Shergina
- The Natural and Anthropogenic Ecosystems Laboratory, Department of Ecology, Siberian Instititue of Plant Physiology and Biochemistry Siberian Branch of the Russian Academy of Sciences, 132, Lermontova str., 664033, Irkutsk, Russia
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13
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Cho SH, Lee SK, Kim CH. The determination of polycyclic aromatic hydrocarbons in human urine by high-resolution gas chromatography-mass spectrometry. Biomed Chromatogr 2018; 32:e4166. [DOI: 10.1002/bmc.4166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 11/30/2017] [Accepted: 12/04/2017] [Indexed: 02/03/2023]
Affiliation(s)
- Sung-Hee Cho
- Center for Chemical Analysis; Korea Research Institute of Chemical Technology; Yuseong-gu, Daejeon Korea
| | - Sun-Kyung Lee
- Center for Chemical Analysis; Korea Research Institute of Chemical Technology; Yuseong-gu, Daejeon Korea
- Department of Chemistry; Korea University; Anam-dong Seongbuk-Gu, Seoul Korea
| | - Chong Hyeak Kim
- Center for Chemical Analysis; Korea Research Institute of Chemical Technology; Yuseong-gu, Daejeon Korea
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14
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Grova N, Faÿs F, Hardy EM, Appenzeller BMR. New insights into urine-based assessment of polycyclic aromatic hydrocarbon-exposure from a rat model: Identification of relevant metabolites and influence of elimination kinetics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 228:484-495. [PMID: 28575812 DOI: 10.1016/j.envpol.2017.03.060] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/25/2017] [Indexed: 05/18/2023]
Abstract
A gas chromatography tandem mass-spectrometry method dedicated to the analysis of 50 metabolites of polycyclic aromatic hydrocarbons (OH-PAHs) was applied to urine specimens collected from female Long Evans rats under controlled exposure to a mixture of PAHs (at 7 doses ranging from 0.01 to 0.8 mg/kg, by gavage, 3 times per week for 90 days). On four occasions (day 1, 28, 60 and 90), urine samples were collected over a 24 h period. Among these 50 OH-PAHs, 41 were detected in urine samples. Seven additional OH-PAHs were identified for the first time: 1 corresponding to metabolite of pyrene and 3 of anthracene. Strong linear dose versus urinary concentration relationships were observed for 25 of the 41 OH-PAHs detected in rat urine, confirming their suitability for assessing exposure to their respective parent compound. In addition, some isomers (e.g. 1-OH-pyrene, 3-OH-/4-OH-chrysene, 10-OH-benz[a]anthracene, 8-OH-benzo[k]fluoranthene, 11-OH-benzo[b]fluoranthene and 3-OH-benzo[a]pyrene) that were detected starting from the lowest levels of exposure or even in controls were considered particularly relevant biomarkers compared to metabolites only detected at higher levels of exposure. Finally, on the basis of the excretion profiles (on days 1, 28, 60 and 90) and urinary elimination kinetics of each OH-PAH detected at days 1 and 60, this study highlighted the fact that sampling time may influence the measurement of metabolites in urine. Taken together, these results provide interesting information on the suitability of the analysis of OH-PAHs in urine for the assessment of PAH exposure, which could be taken into consideration for the design of epidemiological studies in the future.
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Affiliation(s)
- N Grova
- Human Biomonitoring Research Unit, Department of Population Health, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg.
| | - F Faÿs
- Human Biomonitoring Research Unit, Department of Population Health, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg
| | - E M Hardy
- Human Biomonitoring Research Unit, Department of Population Health, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg
| | - B M R Appenzeller
- Human Biomonitoring Research Unit, Department of Population Health, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg
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15
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Liang X, Guo C, Liao C, Liu S, Wick LY, Peng D, Yi X, Lu G, Yin H, Lin Z, Dang Z. Drivers and applications of integrated clean-up technologies for surfactant-enhanced remediation of environments contaminated with polycyclic aromatic hydrocarbons (PAHs). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 225:129-140. [PMID: 28365510 DOI: 10.1016/j.envpol.2017.03.045] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 03/18/2017] [Accepted: 03/20/2017] [Indexed: 05/05/2023]
Abstract
Surfactant-enhanced remediation (SER) is considered as a promising and efficient remediation approach. This review summarizes and discusses main drivers on the application of SER in removing polycyclic aromatic hydrocarbons (PAHs) from contaminated soil and water. The effect of PAH-PAH interactions on SER efficiency is, for the first time, illustrated in an SER review. Interactions between mixed PAHs could enhance, decrease, or have no impact on surfactants' solubilization power towards PAHs, thus affecting the optimal usage of surfactants for SER. Although SER can transfer PAHs from soil/non-aqueous phase liquids to the aqueous phase, the harmful impact of PAHs still exists. To decrease the level of PAHs in SER solutions, a series of SER-based integrated cleanup technologies have been developed including surfactant-enhanced bioremediation (SEBR), surfactant-enhanced phytoremediation (SEPR) and SER-advanced oxidation processes (SER-AOPs). In this review, the general considerations and corresponding applications of the integrated cleanup technologies are summarized and discussed. Compared with SER-AOPs, SEBR and SEPR need less operation cost, yet require more treatment time. To successfully achieve the field application of surfactant-based technologies, massive production of the cost-effective green surfactants (i.e. biosurfactants) and comprehensive evaluation of the drivers and the global cost of SER-based cleanup technologies need to be performed in the future.
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Affiliation(s)
- Xujun Liang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Chuling Guo
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China
| | - Changjun Liao
- Department of Environmental Engineering, Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
| | - Shasha Liu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Lukas Y Wick
- Department of Environmental Microbiology, UFZ - Helmholtz Centre for Environmental Research, UFZ. Permoserstr. 15, 04318 Leipzig, Germany
| | - Dan Peng
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Xiaoyun Yi
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China
| | - Guining Lu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China
| | - Hua Yin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China
| | - Zhang Lin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China.
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16
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Hardonnière K, Fernier M, Gallais I, Mograbi B, Podechard N, Le Ferrec E, Grova N, Appenzeller B, Burel A, Chevanne M, Sergent O, Huc L, Bortoli S, Lagadic-Gossmann D. Role for the ATPase inhibitory factor 1 in the environmental carcinogen-induced Warburg phenotype. Sci Rep 2017; 7:195. [PMID: 28298645 PMCID: PMC5428028 DOI: 10.1038/s41598-017-00269-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 02/14/2017] [Indexed: 11/28/2022] Open
Abstract
Most tumors undergo metabolic reprogramming towards glycolysis, the so-called Warburg effect, to support growth and survival. Overexpression of IF1, the physiological inhibitor of the F0F1ATPase, has been related to this phenomenon and appears to be a relevant marker in cancer. Environmental contributions to cancer development are now widely accepted but little is known about the underlying intracellular mechanisms. Among the environmental pollutants humans are commonly exposed to, benzo[a]pyrene (B[a]P), the prototype molecule of polycyclic aromatic hydrocarbons (PAHs), is a well-known human carcinogen. Besides apoptotic signals, B[a]P can also induce survival signals in liver cells, both likely involved in cancer promotion. Our previous works showed that B[a]P elicited a Warburg-like effect, thus favoring cell survival. The present study aimed at further elucidating the molecular mechanisms involved in the B[a]P-induced metabolic reprogramming, by testing the possible involvement of IF1. We presently demonstrate, both in vitro and in vivo, that PAHs, especially B[a]P, strongly increase IF1 expression. Such an increase, which might rely on β2-adrenergic receptor activation, notably participates to the B[a]P-induced glycolytic shift and cell survival in liver cells. By identifying IF1 as a target of PAHs, this study provides new insights about how environmental factors may contribute to related carcinogenesis.
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Affiliation(s)
- Kévin Hardonnière
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Morgane Fernier
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Isabelle Gallais
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Baharia Mograbi
- Institute of Research on Cancer and Ageing of Nice (IRCAN), INSERM U1081, CNRS UMR7284, Université de Nice-Sophia Antipolis, Faculté de Médecine, Centre Antoine Lacassagne, Nice, F-06107, France
| | - Normand Podechard
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Eric Le Ferrec
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Nathalie Grova
- HBRU, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354, Esch-sur-Alzette, Luxembourg
| | - Brice Appenzeller
- HBRU, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354, Esch-sur-Alzette, Luxembourg
| | - Agnès Burel
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Martine Chevanne
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | - Odile Sergent
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France
| | | | - Sylvie Bortoli
- INSERM UMR-S 1124, Université Paris Descartes, Centre Universitaire des Saint-Pères, Paris, France
| | - Dominique Lagadic-Gossmann
- Inserm U1085, Institut de Recherche en Santé, Environnement, Travail, Rennes, France.
- Université de Rennes 1, Biosit UMS3080, 35043, Rennes Cédex, France.
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17
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Mao X, Wang S, Huang Y, Zhou T. A Theoretical Investigation of Gas Phase OH-Initiated Acenaphthylene Degradation Reaction. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/cc.2017.51003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Luo C, Yu Q, Wang H. DFT study of the formation mechanism of anthraquinone from the reaction of NO 2 and anthracene on NaCl clusters: the role of NaNO 3. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2016; 18:1500-1507. [PMID: 27812561 DOI: 10.1039/c6em00420b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and oxygenated-PAHs are globally worrisome air pollutants because of their highly direct-acting mutagenicity and carcinogenicity. The formation of oxygenated-PAHs is of crucial importance for the prevention of their atmospheric pollution successfully. In this paper, the formation mechanism of oxygenated-PAHs from the heterogeneous reaction of NO2 with anthracene on the surface of NaCl was studied by density functional theory (DFT) calculations. At first, the various adsorption configurations of NO2 and N2O4 on NaCl were investigated. The chemical conversion mechanisms among these configurations were also investigated. It is found that these structures can easily interconvert due to their low energy barriers. NaNO3 was found to be the main product of the reaction of NO2/N2O4 on NaCl. Then the oxidation mechanism of anthracene by NO2 on the NaCl surface showed that NaNO3 is able to oxidize anthracene and plays a catalytic role in the reaction process. This means that the formation of NaNO3 is very important to promote the formation of 9,10-anthraquinone from the heterogeneous reaction of NO2 with anthracene. Our calculations also showed that the introduction of water can greatly accelerate this reaction process.
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Affiliation(s)
- Chao Luo
- School of Resources Environmental and Chemical Engineering, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi, 330031 China.
| | - Qiming Yu
- School of Resources Environmental and Chemical Engineering, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi, 330031 China.
| | - Hongming Wang
- School of Resources Environmental and Chemical Engineering, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi, 330031 China.
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19
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Xu F, Shi X, Zhang Q, Wang W. Mechanism for the growth of polycyclic aromatic hydrocarbons from the reactions of naphthalene with cyclopentadienyl and indenyl. CHEMOSPHERE 2016; 162:345-354. [PMID: 27538266 DOI: 10.1016/j.chemosphere.2016.07.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 06/11/2016] [Accepted: 07/13/2016] [Indexed: 06/06/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are globally concerned atmospheric particle-bound pollutants due to their toxicities. A mechanistic understanding of their formation from other environmental sources is of crucial importance for successful prevention of PAH. In the present work, the formation and growth mechanism of PAHs from the reactions of naphthalene with the cyclopentadienyl and indenyl radicals was investigated by using the hybrid density functional theory (DFT) at the MPWB1K/6-311+G(3df,2p)//MPWB1K/6-31+G(d,p) level. The rate constants for the crucial elementary steps were deduced with the aid of the canonical variational transition-state (CVT) theory with the small curvature tunneling (SCT) contribution. The formation of PAHs was involved in six elementary processes including: the addition reaction, ring closure, intramolecular H-shift, C-C cleavage, intramolecular H-shift and unimolecular elimination of CH3 or H. The C-C cleavage steps were revealed as the rate determining steps due to the extremely high barrier. At high temperature conditions like the combustion and pyrolysis of many hydrocarbons, the main products are phenanthrene, 4-methyl-phenanthrene and 1-methyl-phenanthrene from the reactions of naphthalene and cyclopentadienyl, and benzo(a)anthracene, 12-methyl-phenanthrene and 7-methyl-phenanthrene from the reactions of naphthalene and indenyl radicals. The reaction of naphthalene with indenyl radical is slightly more difficult than the reaction of naphthalene with cyclopentadienyl radical because of the bigger HOMO-LUMO orbital energy difference of naphthalene with indenyl relative to that of naphthalene with cyclopentadienyl.
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Affiliation(s)
- Fei Xu
- Environment Research Institute, Shandong University, Jinan, 250100, PR China
| | - Xiangli Shi
- Environment Research Institute, Shandong University, Jinan, 250100, PR China
| | - Qingzhu Zhang
- Environment Research Institute, Shandong University, Jinan, 250100, PR China.
| | - Wenxing Wang
- Environment Research Institute, Shandong University, Jinan, 250100, PR China
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20
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Environmental Epidemiology of Cancer in South Asian Population: Risk Assessment Against Exposure to Polycyclic Aromatic Hydrocarbons and Volatile Organic Compounds. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2016. [DOI: 10.1007/s13369-016-2139-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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21
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Lafontaine S, Schrlau J, Butler J, Jia Y, Harper B, Harris S, Bramer LM, Waters K, Harding A, Simonich SLM. Relative Influence of Trans-Pacific and Regional Atmospheric Transport of PAHs in the Pacific Northwest, U.S. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:13807-16. [PMID: 26151337 PMCID: PMC4666789 DOI: 10.1021/acs.est.5b00800] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 05/15/2015] [Accepted: 06/22/2015] [Indexed: 05/22/2023]
Abstract
The relative influences of trans-Pacific and regional atmospheric transport on measured concentrations of polycyclic aromatic hydrocarbons (PAHs), PAH derivatives (nitro- (NPAH) and oxy-(OPAH)), organic carbon (OC), and particulate matter (PM) less than 2.5 μm in diameter (PM2.5) were investigated in the Pacific Northwest, U.S. in 2010-2011. Ambient high volume PM2.5 air samples were collected at two sites in the Pacific Northwest: (1.) Mount Bachelor Observatory (MBO) in the Oregon Cascade Range (2763 m above sea level (asl)) and 2.) Confederated Tribes of the Umatilla Indian Reservation (CTUIR) in the Columbia River Gorge (CRG) (954 m asl). At MBO, the 1,8-dinitropyrene concentration was significantly positively correlated with the time a sampled air mass spent over Asia, suggesting that this NPAH may be a good marker for trans-Pacific atmospheric transport. At CTUIR, NOx, CO2, and SO2 emissions from a 585 MW coal fired power plant, in Boardman OR, were found to be significantly positively correlated with PAH, OPAH, NPAH, OC, and PM2.5 concentrations. By comparing the Boardman Plant operational time frames when the plant was operating to when it was shut down, the plant was found to contribute a large percentage of the measured PAH (67%), NPAH (91%), OPAH (54%), PM2.5 (39%), and OC (38%) concentrations at CTUIR and the CRG prior to Spring 2011 and likely masked trans-Pacific atmospheric transport events to the CRG. Upgrades installed to the Boardman Plant in the spring of 2011 dramatically reduced the plant's contribution to PAH and OPAH concentrations (by ∼72% and ∼40%, respectively) at CTUIR and the CRG, but not NPAH, PM2.5 or OC concentrations.
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Affiliation(s)
- Scott Lafontaine
- Department
of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Jill Schrlau
- Environmental
and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
| | - Jack Butler
- Confederated
Tribes
of the Umatilla Indian Reservation, Pendleton, Oregon 97801, United States
| | - Yuling Jia
- Environmental
and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
| | - Barbara Harper
- Confederated
Tribes
of the Umatilla Indian Reservation, Pendleton, Oregon 97801, United States
- School
of Biological and Population Health Sciences, College of Public Health
and Human Sciences, Oregon State University, Corvallis, Oregon 97331, United States
| | - Stuart Harris
- Confederated
Tribes
of the Umatilla Indian Reservation, Pendleton, Oregon 97801, United States
| | - Lisa M. Bramer
- Computational
and Statistical Analytics, Pacific Northwest
National Laboratory, Richland, Washington 99352, United States
| | - Katrina
M. Waters
- Computational
Biology and Bioinformatics, Pacific Northwest
National Laboratory, Richland, Washington 99352, United States
| | - Anna Harding
- School
of Biological and Population Health Sciences, College of Public Health
and Human Sciences, Oregon State University, Corvallis, Oregon 97331, United States
| | - Staci L. Massey Simonich
- Department
of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
- Environmental
and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
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22
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Zhang X, Hou H, Chen H, Liu Y, Wang A, Hu Q. Quantification of 16 polycyclic aromatic hydrocarbons in cigarette smoke condensate using stable isotope dilution liquid chromatography with atmospheric-pressure photoionization tandem mass spectrometry. J Sep Sci 2015; 38:3862-3869. [DOI: 10.1002/jssc.201500623] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 09/04/2015] [Accepted: 09/05/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Xiaotao Zhang
- China National Tobacco Quality Supervision & Test Centre; Zhengzhou China
- Institute of Applied Technology, Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei China
| | - Hongwei Hou
- China National Tobacco Quality Supervision & Test Centre; Zhengzhou China
| | - Huan Chen
- China National Tobacco Quality Supervision & Test Centre; Zhengzhou China
| | - Yong Liu
- Institute of Applied Technology, Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei China
| | - An Wang
- Institute of Applied Technology, Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei China
| | - Qingyuan Hu
- China National Tobacco Quality Supervision & Test Centre; Zhengzhou China
- Institute of Applied Technology, Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei China
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23
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Motorykin O, Schrlau J, Jia Y, Harper B, Harris S, Harding A, Stone D, Kile M, Sudakin D, Massey Simonich SL. Determination of parent and hydroxy PAHs in personal PM₂.₅ and urine samples collected during Native American fish smoking activities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 505:694-703. [PMID: 25461072 PMCID: PMC4261013 DOI: 10.1016/j.scitotenv.2014.10.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 10/16/2014] [Accepted: 10/16/2014] [Indexed: 05/20/2023]
Abstract
A method was developed for the measurement of 19 parent PAHs (PAHs) and 34 hydroxylated PAHs (OH-PAHs) in urine and personal air samples of particulate matter less than 2.5 μm in diameter (PM₂.₅) using GC-MS and validated using NIST SRM 3672 (Organic Contaminants in Smoker's Urine) and SRM 3673 (Organic Contaminants in Nonsmoker's Urine). The method was used to measure PAHs and OH-PAHs in urine and personal PM₂.₅ samples collected from the operators of two different fish smoking facilities (tipi and smoke shed) burning two different wood types (alder and apple) on the Confederated Tribes of Umatilla Indian Reservation (CTUIR) while they smoked salmon. Urine samples were spiked with β-glucuronidase/arylsulfatase to hydrolyze the conjugates of OH-PAHs and the PAHs and OH-PAHs were extracted using Plexa and C18 solid phases, in series. The 34 OH-PAHs were derivatized using MTBSTFA, and the mixture was measured by GC-MS. The personal PM₂.₅ samples were extracted using pressurized liquid extraction, derivatized with MTBSTFA and analyzed by GC-MS for PAHs and OH-PAHs. Fourteen isotopically labeled surrogates were added to accurately quantify PAHs and OH-PAHs in the urine and PM₂.₅ samples and three isotopically labeled internal standards were used to calculate the recovery of the surrogates. Estimated detection limits in urine ranged from 6.0 to 181 pg/ml for OH-PAHs and from 3.0 to 90 pg/ml for PAHs, and, in PM₂.₅, they ranged from 5.2 to 155 pg/m(3) for OH-PAHs and from 2.5 to 77 pg/m(3) for PAHs. The results showed an increase in OH-PAH concentrations in urine after 6h of fish smoking and an increase in PAH concentrations in air within each smoking facility. In general, the PAH exposure in the smoke shed was higher than in the tipi and the PAH exposure from burning apple wood was higher than burning alder.
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Affiliation(s)
- Oleksii Motorykin
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA
| | - Jill Schrlau
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Yuling Jia
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Barbara Harper
- Department of Science and Engineering, Confederated Tribes of the Umatilla Indian Reservation, Pendleton, OR 97801, USA
| | - Stuart Harris
- Department of Science and Engineering, Confederated Tribes of the Umatilla Indian Reservation, Pendleton, OR 97801, USA
| | - Anna Harding
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - David Stone
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Molly Kile
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Daniel Sudakin
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Staci L Massey Simonich
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA; Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA.
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24
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Dang J, Shi X, Hu J, Chen J, Zhang Q, Wang W. Mechanistic and kinetic studies on OH-initiated atmospheric oxidation degradation of benzo[α]pyrene in the presence of O2 and NO(x). CHEMOSPHERE 2015; 119:387-393. [PMID: 25063961 DOI: 10.1016/j.chemosphere.2014.07.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/29/2014] [Accepted: 07/01/2014] [Indexed: 06/03/2023]
Abstract
The degradation of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere can lead to toxic derivatives which contribute to the carcinogenic potential of particulate organic matter. This paper aimed to investigate the mechanism of the OH-initiated oxidation degradation of benzo[α]pyrene (BaP), a cancer risk indicator. High-accuracy molecular orbital calculations were carried out, and all of the possible degradation pathways were discussed. The theoretical results were compared with the available experimental observation. The possible secondary reactions were also investigated. The rate constants of the crucial elementary steps were evaluated by using the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. The dominant degradation products involve benzo[α]pyren-ol, nitro-benzo[α]pyrene, benzo[α]pyrene-7,10-dione as well as several ring-opened products such as alkyl substituted benzanthraldehyde et al. In particular, water plays an important role in the degradation pathways leading to the formation of nitro-benzo[α]pyrene. This work provides a comprehensive investigation of the OH-initiated degradation of BaP and should help to clarify its potential risk.
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Affiliation(s)
- Juan Dang
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Xiangli Shi
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Jingtian Hu
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Jianmin Chen
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Qingzhu Zhang
- Environment Research Institute, Shandong University, Jinan 250100, PR China.
| | - Wenxing Wang
- Environment Research Institute, Shandong University, Jinan 250100, PR China
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25
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Chen K, Huang L, Yan B, Li H, Sun H, Bi J. Effect of lead pollution control on environmental and childhood blood lead level in Nantong, China: an interventional study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:12930-6. [PMID: 25294690 DOI: 10.1021/es502994j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Children's blood lead levels and prevalence of lead poisoning in China are significantly higher than in developed countries, though a substantial decrease has been observed. Since 2011, strict lead control policies in lead-related industries have been implemented in China, but the success of these policies is unknown. In this study, we collected environmental samples, questionnaire data, and blood samples from 106 children from 1 to 14 years old, before and after implementation of lead-usage control policy in wire rope factories by local government in Zhuhang, Nantong in 2012. Results showed that, one year after the lead control, lead concentrations sharply decreased in both environmental and biological samples with a decrease of 0.43 μg/m3 (-84.3%) in ambient air samples, 0.22 mg/kg (-36.1%) in vegetable samples, 441.1 mg/kg (-43.7%) in dust samples, and 6.24 μg/dL (-51.5%) in childhood blood lead levels (BLL). This study demonstrates the success of lead control policies in promoting the prevention and control of childhood lead poisoning in Nantong, China.
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Affiliation(s)
- Kai Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University , Xianlin Campus, Box 624, 163 Xianlin Avenue, Nanjing 210023, China
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26
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Zhang Q, Gao R, Xu F, Zhou Q, Jiang G, Wang T, Chen J, Hu J, Jiang W, Wang W. Role of water molecule in the gas-phase formation process of nitrated polycyclic aromatic hydrocarbons in the atmosphere: a computational study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:5051-5057. [PMID: 24689775 DOI: 10.1021/es500453g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nitro-PAHs are globally worrisome air pollutants because their high direct-acting mutagenicity and carcinogenicity. A mechanistic understanding of their formation is of crucial importance for successful prevention of their atmospheric pollution. Here, the formation of nitro-PAHs arising from the OH-initiated and NO3-initiated atmospheric reactions of PAHs was investigated by using quantum chemical calculations. It is widely assumed that OH or NO3 radicals attack on the C atoms of the aromatic rings in the PAH molecule, followed by the addition of NO2 to the OH-PAH or NO3-PAH adducts at the ortho position and the loss of water or nitric acid to form nitro-PAHs. However, calculations show that the direct loss of water from the OH-NO2-PAH adducts via the unimolecular decomposition is energetically unfavorable. This study reveals for the first time that water molecule plays an important catalytic effect on the loss of water from the OH-NO2-PAH adducts and promotes the formation of nitro-PAHs. In addition, the introduction of water unwraps new formation pathway through the addition of NO2 to the OH-PAH or NO3-PAH adduct at the para position. The individual and overall rate constants for the addition reactions of PAHs with OH and NO3 radicals were deduced by using the Rice-Ramsperger-Kassel-Marcus (RRKM) theory.
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Affiliation(s)
- Qingzhu Zhang
- Environment Research Institute, Shandong University , Jinan 250100, China
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