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1. A review of levels and profiles of polychlorinated dibenzo-p-dioxins and dibenzofurans in different environmental media from China

Author:
Lei, Rongrong; Liu, Wenbin; Wu, Xiaolin; Ni, Taotao; Jia, Tianqi
Source:
Chemosphere 2020 v.239
ISSN:
0045-6535
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; air; electronic wastes; hydrophobicity; lakes; pollution; polychlorinated dibenzodioxins; seasonal variation; sediments; soil; summer; winter; China; Yellow Sea;     Show all 15 Subjects
Abstract:
... This review provides a summary of the levels and profiles of PCDD/Fs throughout China, as reported in peer reviewed literatures since 1997. The literature shows that PCDD/Fs are widespread in various environmental media including air, water, sediment, and soil. PCDD/Fs concentrations in air were relatively low in most regions, with only a few areas considered polluted. Many studies reported season ...
DOI:
10.1016/j.chemosphere.2019.124685

2. Mechanistic studies on the dibenzofuran and dibenzo‑p‑dioxin formation reactions from anthracene

Author:
Zhang, Ruiming; Zhuang, Tao; Zhang, Qingzhu; Wang, Wenxing
Source:
The Science of the total environment 2019 v.662 pp. 41-47
ISSN:
0048-9697
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; anthracenes; humans; mutagens; oxidation; polychlorinated dibenzodioxins; toxicity;     Show all 8 Subjects
Abstract:
... Polychlorinated dibenzo‑p‑dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are highly toxic, carcinogenic and mutagenic to humans. As precursors of PCDD/Fs, dibenzofuran (DF) and dibenzo‑p‑dioxin (DD) have received considerable public and scientific attention. To reduce the emission of PCDD/Fs, it is critical to explore the formation mechanisms of DF and DD. The present study delineated t ...
DOI:
10.1016/j.scitotenv.2018.12.408

3. Total synthesis of kehokorins A and B

Author:
Fujiwara, Kenshu; Motousu, Ryosuke; Sato, Daisuke; Kondo, Yoshihiko; Akiba, Uichi; Suzuki, Takanori; Tokiwano, Tetsuo
Source:
Tetrahedron letters 2019 v.60 no.18 pp. 1299-1301
ISSN:
0040-4039
Subject:
dibenzofuran,   etc   ; Suzuki reaction; bromination; moieties;     Show all 4 Subjects
Abstract:
... The total synthesis of a dibenzofuran rhamnoside, kehokorin A, and its aglycone, kehokorin B, was achieved via a route including Suzuki-Miyaura cross-coupling followed by Ullmann ether synthesis to form a dibenzofuran, stepwise bromination at C7 of the dibenzofuran, a second Suzuki-Miyaura cross-coupling to install a 4-methoxyphenyl group at C7, and rhamnosylation. ...
DOI:
10.1016/j.tetlet.2019.04.011

4. Characteristics, sources and health risks of toxic species (PCDD/Fs, PAHs and heavy metals) in PM2.5 during fall and winter in an industrial area

Author:
Bi, Chenglu; Chen, Yantong; Zhao, Zhuzi; Li, Qing; Zhou, Quanfa; Ye, Zhaolian; Ge, Xinlei
Source:
Chemosphere 2020 v.238
ISSN:
0045-6535
Subject:
polychlorinated dibenzofurans,   etc   ; aerodynamics; air; aluminum; autumn; carcinogenicity; coal; combustion; dust; emissions; gasoline; health effects assessments; heavy metals; iron; molecular weight; particulates; petroleum; polychlorinated dibenzodioxins; polycyclic aromatic hydrocarbons; principal component analysis; river deltas; winter; zinc; China;     Show all 24 Subjects
Abstract:
... Particulate toxic species, such as polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), polycyclic aromatic hydrocarbons (PAHs) and heavy metals may have significant health risks. This study investigated characteristics, sources and health risks of all three classes of toxic species in PM2.5 (particles with aerodynamic diameter ≤2.5 μm) samples collected at an industrial ...
DOI:
10.1016/j.chemosphere.2019.124620

5. Emission profiles and formation pathways of 2,3,7,8-substituted and non-2,3,7,8-substituted polychlorinated dibenzo-p-dioxins and dibenzofurans in secondary copper smelters

Author:
Li, Haifeng; Liu, Wenbin; Tang, Chen; Lei, Rongrong; Zhu, Wen
Source:
The Science of the total environment 2019 v.649 pp. 473-481
ISSN:
0048-9697
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; chlorination; copper; fly ash; gases; mammals; metabolism; oxidation; polychlorinated dibenzodioxins; toxicity; toxicology;     Show all 12 Subjects
Abstract:
... Secondary copper smelting production is one of the largest polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) emission sources in the world. However, the formations and emissions of non-2,3,7,8-PCDD/Fs have rarely been studied. Toxicology and metabolism studies have proved that non-2,3,7,8-PCDD/Fs may also be toxic to mammals. To better explore the pathways and mechanisms involved in tr ...
DOI:
10.1016/j.scitotenv.2018.08.279

6. Sulfur Ylide Initiated [4 + 1]/[4 + 2] Annulation Reactions: A One-Pot Approach to Dibenzofuran Acrylate Derivatives

Author:
Shao, Jiaan; Chen, Wenteng; Ying, Zhimin; Liu, Shuangrong; Luo, Feng; Ou, Lili
Source:
Organic letters 2019 v.21 no.16 pp. 6370-6373
ISSN:
1523-7052
Subject:
dibenzofuran,   etc   ; alkynes; catalysts; chemical reactions; chemical structure; phenols; sulfur;     Show all 7 Subjects
Abstract:
... A one-pot approach has been developed for the synthesis of polysubstituted dibenzofuran acrylate derivatives from (E)-2-(2-nitrovinyl)phenols, sulfur ylides, and alkynes. This protocol was carried out under mild reaction condition without any precious catalysts in generally moderate to good yields. Additionally, a plausible mechanism for the transformation was proposed. ...
DOI:
10.1021/acs.orglett.9b02260

7. Highly Twisted Donor–Acceptor Boron Emitter and High Triplet Host Material for Highly Efficient Blue Thermally Activated Delayed Fluorescent Device

Author:
Ahn, Dae Hyun; Lee, Hyuna; Kim, Si Woo; Karthik, Durai; Lee, Jungsub; Jeong, Hyein; Lee, Ju Young; Kwon, Jang Hyuk
Source:
ACS applied materials & interfaces 2019 v.11 no.16 pp. 14909-14916
ISSN:
1944-8252
Subject:
dibenzofuran,   etc   ; boron; color; energy; fluorescence; imidazoles; light emitting diodes; moieties;     Show all 8 Subjects
Abstract:
... New highly efficient thermally activated delayed fluorescence (TADF) dopant materials (PXB-DI and PXB-mIC) for blue organic light-emitting diodes are reported. These materials were designed by combining highly conjugated rigid ring donor moieties and a boron acceptor with a highly twisted configuration to have high TADF performance and minimized self-quenching properties. In addition, a new high t ...
DOI:
10.1021/acsami.9b00931

8. Influence factors and mass balance of memory effect on PCDD/F emissions from the full-scale municipal solid waste incineration in China

Author:
Ma, Yunfeng; Lin, Xiaoqing; Chen, Zhiliang; Li, Xiaodong; Lu, Shengyong; Yan, Jianhua
Source:
Chemosphere 2019
ISSN:
0045-6535
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; adsorption; desorption; emissions; filling materials; flue gas; incinerators; municipal solid waste; polychlorinated dibenzodioxins; waste incineration; China;     Show all 12 Subjects
Abstract:
... Studies are carried out in two wet scrubbing systems (WSSs) subordinated to two similar full-scale (30 t h−1) municipal solid waste (MSW) incinerators to explore the influence factors and mass balance of memory effect on polychlorinated-ρ-dibenzodioxins and dibenzofurans (PCDD/Fs) emissions. The results show that the memory effect on two WSSs notably increases the TEQ concentrations by 13.6 and 3 ...
DOI:
10.1016/j.chemosphere.2019.124614

9. Study on the pollution characteristics and emission factors of PCDD/Fs from disperse dye production in China

Author:
Zhou, Xin; Zhou, Yanxiao; Liu, Jinsong; Song, Shuang; Sun, Junjun; Zhu, Guohua; Gong, Hongping; Wang, Ling; Wu, Chenwang; Li, Mufei
Source:
Chemosphere 2019 v.228 pp. 328-334
ISSN:
0045-6535
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; business enterprises; dyes; emissions factor; pollution; polychlorinated dibenzodioxins; raw materials; sludge; solid wastes; wastewater; China;     Show all 12 Subjects
Abstract:
... According to an analysis of the input and output of polychlorinated dibenzo-p-dioxin and dibenzofurans (PCDD/Fs) of two disperse dye manufacturers, the average PCDD/F emission factor was 56.3 μg I-TEQ/T product, and dioxin was mainly emitted with products and solid waste. The PCDD/F concentrations of different series of disperse dyes varied from 2.87 to 323 pg I-TEQ/g, and the dominant congener wa ...
DOI:
10.1016/j.chemosphere.2019.04.136

10. Understanding possible causes of exceeding dioxin levels in palm oil by-products: An explorative study

Author:
Taverne-Veldhuizen, Wilma; Hoogenboom, Ron; Dam, Guillaume ten; Herbes, Rik; Luning, Pieternel
Source:
Food control 2019 pp. 106777
ISSN:
0956-7135
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; bleaching; byproducts; chlorine; compliance; deodorization; fatty acids; hydrogen; hydrogenation; palm oils; polychlorinated dibenzodioxins; toxicity;     Show all 13 Subjects
Abstract:
... The Rapid Alert System for Food and Feed (period 1999–2014) reported exceeding levels of dioxins (polychlorinated dibenzo-p-dioxinsand dibenzofurans (PCDD/Fs)) in palm oil by-products, such as palm fatty acid distillate (PFAD) and hydrogenated palm fatty acid distillate (HPFAD), but not in crude and refined palm oil. The aim of the present study was to gain insight into the occurrence and congener ...
DOI:
10.1016/j.foodcont.2019.106777

11. High intake of persistent organic pollutants generated by a municipal waste incinerator by breastfed infants

Author:
Xu, Peiwei; Wu, Lizhi; Chen, Yuan; Xu, Dandan; Wang, Xiaofeng; Shen, Haitao; Han, Jianlong; Fu, Qiuli; Chen, Zhijian; Lou, Xiaoming
Source:
Environmental pollution 2019 v.250 pp. 662-668
ISSN:
0269-7491
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; average daily intake; breast feeding; breast milk; infants; mothers; persistent organic pollutants; polychlorinated biphenyls; polychlorinated dibenzodioxins; China;     Show all 11 Subjects
Abstract:
... To monitor the body burden of persistent organic pollutants in mothers and infants living in proximity to a 10-year-old municipal waste incinerator (MWI), levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in the breast milk of mothers were evaluated, and the estimated daily intake (EDI) level of these pollutants in infants was assessed. In ...
DOI:
10.1016/j.envpol.2019.04.069

12. Levels and fingerprints of chlorinated aromatic hydrocarbons in fly ashes from the typical industrial thermal processes: Implication for the co-formation mechanism

Author:
Fan, Yun; Ren, Meihui; Zhang, Haijun; Geng, Ningbo; Li, Yun; Zhang, Ning; Zhao, Liang; Gao, Yuan; Chen, Jiping
Source:
Chemosphere 2019 v.224 pp. 298-305
ISSN:
0045-6535
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; chlorinated naphthalenes; chlorination; fly ash; iron; municipal solid waste; polychlorinated biphenyls; polychlorinated dibenzodioxins; steel; waste incineration;     Show all 11 Subjects
Abstract:
... Municipal solid waste incineration (MSWI) and iron and steel making plants are two of important sources of chlorinated aromatic hydrocarbons (CAHs). In this study, the typical CAHs including polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs) and chlorinated polycyclic aromatic hydrocarbons (Cl-PAHs) in fly ash sample ...
DOI:
10.1016/j.chemosphere.2019.02.117

13. Monitoring dioxins and furans in plasma of individuals living near a hazardous waste incinerator: Temporal trend after 20 years

Author:
Nadal, Martí; Mari, Montse; Schuhmacher, Marta; Domingo, José L.
Source:
Environmental research 2019 v.173 pp. 207-211
ISSN:
0013-9351
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; breast milk; emissions; food intake; furans; gender; hazardous waste; lipids; monitoring; polychlorinated dibenzodioxins; risk; surveys; Spain;     Show all 14 Subjects
Abstract:
... The concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were analyzed in 40 plasma samples of individuals living in zones under potential influence of the emissions of a hazardous waste incinerator (HWI) (Tarragona County, Catalonia, Spain). Samples corresponded to subjects of different gender, age and specific areas of residence. The levels of PCDD/Fs were compared to ...
DOI:
10.1016/j.envres.2019.03.051

14. Detoxification of municipal solid waste incinerator (MSWI) fly ash by single-mode microwave (MW) irradiation: Addition of urea on the degradation of Dioxin and mechanism

Author:
Deng, Dongyang; Qiao, Junqin; Liu, Mingqing; Kołodyńska, Dorota; Zhang, Manwen; Dionysiou, Dionysios D.; Ju, Yongming; Ma, Jun; Chang, Moo-been
Source:
Journal of hazardous materials 2019 v.369 pp. 279-289
ISSN:
0304-3894
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; fly ash; heavy metals; irradiation; leaching; municipal solid waste; polychlorinated dibenzodioxins; pyrolysis; silicon carbide; temperature; toxicity; urea;     Show all 13 Subjects
Abstract:
... The detoxification of municipal solid waste incinerator (MSWI) fly ash dioxins urgently requires an effective treatment technology. In this study, we adopted a single-mode microwave (MW)-based pyrolysis to treat MSWI fly ash under N2 atmosphere and further elucidated the main influencing factors, including the chemical inhibitor, for dioxin control. The results show that (1) the detoxification pro ...
DOI:
10.1016/j.jhazmat.2019.01.001

15. Brominated dioxins and furans in a cement kiln co-processing municipal solid waste

Author:
Yang, Lili; Zhao, Yuyang; Shi, Miwei; Zheng, Minghui; Xu, Yang; Li, Cui; Yang, Yuanping; Qin, Linjun; Liu, Guorui
Source:
Journal of environmental sciences (China) 2019 v.79 pp. 339-345
ISSN:
1001-0742
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; bromination; cement; furans; hydrobromic acid; kilns; municipal solid waste; polybrominated diphenyl ethers; polychlorinated dibenzodioxins; raw materials;     Show all 11 Subjects
Abstract:
... A field study and theoretical calculations were performed to clarify the levels, profiles, and distributions of polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) in a cement kiln co-processing solid waste, with a focus on the PBDF formation mechanism. The raw materials contributed greatly to input of PBDD/Fs into the cement kiln. The PBDD/F concentrations in the raw materials were much ...
DOI:
10.1016/j.jes.2018.12.009

16. Complex Mixtures of Brominated/Chlorinated Diphenyl Ethers and Dibenzofurans in Soils from the Agbogbloshie e-Waste Site (Ghana): Occurrence, Formation, and Exposure Implications

Author:
Tue, Nguyen Minh; Matsushita, Takafumi; Goto, Akitoshi; Itai, Takaaki; Asante, Kwadwo Ansong; Obiri, Samuel; Mohammed, Saada; Tanabe, Shinsuke; Kunisue, Tatsuya
Source:
Environmental science & technology 2019 v.53 no.6 pp. 3010-3017
ISSN:
1520-5851
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; bromination; burning; electronic wastes; mass spectrometry; polybrominated diphenyl ethers; polychlorinated dibenzodioxins; recycling; soil; toxicity; Ghana;     Show all 12 Subjects
Abstract:
... The distribution and toxic equivalents (TEQs) of brominated and chlorinated dibenzo-p-dioxins/dibenzofurans (PBDD/Fs and PCDD/Fs) in soils from Agbogbloshie e-waste site (Ghana) were investigated. The composition of brominated/chlorinated dibenzofurans (PXDFs) and diphenyl ethers (PBDEs, PCDEs, and PXDEs) was examined using two-dimensional gas chromatography–time-of-flight mass spectrometry to elu ...
DOI:
10.1021/acs.est.8b06929

17. Preliminary investigation of polychlorinated dibenzo-p-dioxin and dibenzofuran, polychlorinated naphthalene, and dioxin-like polychlorinated biphenyl concentrations in ambient air in an industrial park at the northeastern edge of the Tibet–Qinghai Plateau, China

Author:
Hu, Jicheng; Wu, Jing; Xu, Chenyang; Zha, Xiaoshuo; Hua, Ying; Yang, Liwen; Jin, Jun
Source:
The Science of the total environment 2019 v.648 pp. 935-942
ISSN:
0048-9697
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; air; aluminum; cement; chlorinated naphthalenes; emissions; industrial sites; polychlorinated biphenyls; polychlorinated dibenzodioxins; principal component analysis; China;     Show all 12 Subjects
Abstract:
... Ambient air samples collected in an industrial park at the northeastern edge of the Tibet–Qinghai Plateau (China) were analyzed for polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated naphthalenes (PCNs), and dioxin-like (dl) polychlorinated biphenyls (PCBs). The PCDD/F, PCN, and dl-PCB concentrations were 1.18–2.18, 21.9–75.1, and 0.49–0.90 pg/m3, respectively. The conc ...
DOI:
10.1016/j.scitotenv.2018.08.241

18. Atline measurement of 1,2,4-trichlorobenzene for polychlorinated dibenzo-p-dioxin and dibenzofuran International Toxic Equivalent Quantity prediction in the stack gas

Author:
Cao, Xuan; Stevens, William R.; Tang, Shaofu; Lu, Shengyong; Li, Xiaodong; Lin, Xiaoqing; Tang, Minghui; Yan, Jianhua
Source:
Environmental pollution 2019 v.244 pp. 202-208
ISSN:
0269-7491
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; desorption; gas chromatography; linear models; mass spectrometry; municipal solid waste; polychlorinated dibenzodioxins; prediction; toxicity;     Show all 10 Subjects
Abstract:
... A home-made analytical instrument based on thermal desorption gas chromatography coupled to resonance enhanced multiphoton ionization time-of-flight mass spectrometry (TD-GC-REMPI-TOFMS) was applied for atline measurement of 1,2,4-trichlorobenzene for the prediction of polychlorinated dibenzodioxin and dibenzofuran (PCDD/F) concentrations in the stack gas of a municipal solid waste incinerator (40 ...
DOI:
10.1016/j.envpol.2018.09.144

19. Emissions of 2,3,7,8-substituted and non-2,3,7,8-substituted polychlorinated dibenzo-p-dioxins and dibenzofurans from secondary aluminum smelters

Author:
Li, Haifeng; Liu, Wenbin; Tang, Chen; Lei, Rongrong; Wu, Xiaolin; Gao, Lirong; Su, Guijin
Source:
Chemosphere 2019 v.215 pp. 92-100
ISSN:
0045-6535
Subject:
dibenzofuran; polychlorinated dibenzofurans,   etc   ; Gibbs free energy; aluminum; fly ash; industry; inventories; polychlorinated dibenzodioxins; raw materials; risk; smelting; toxicity;     Show all 12 Subjects
Abstract:
... The secondary aluminum smelting industry is an important source of polychlorinated dibenzo-p-dioxin and dibenzofurans (PCDD/Fs). However, the formations and emissions of non-2,3,7,8-PCDD/Fs have rarely been studied. Non-2,3,7,8-PCDD/Fs may also be metabolically toxic to mammalians. In this study, four typical secondary aluminum smelters were selected as demonstration smelters and the composition o ...
DOI:
10.1016/j.chemosphere.2018.10.004

20. Use of a remediated dredged marine sediment as a substrate for food crop cultivation: Sediment characterization and assessment of fruit safety and quality using strawberry (Fragaria x ananassa Duch.) as model species of contamination transfer

Author:
Tozzi, Francesca; Del Bubba, Massimo; Petrucci, William Antonio; Pecchioli, Simona; Macci, Cristina; Hernández García, Francisca; Martínez Nicolás, Juan José; Giordani, Edgardo
Source:
Chemosphere 2020 v.238
ISSN:
0045-6535
Subject:
dibenzofuran,   etc   ; European Union; Fragaria ananassa; ascorbic acid; cadmium; calcium; chromium; copper; cost effectiveness; crop models; crop production; cultivars; food contamination; food crops; fruit growing; fruits; heavy metals; iron; lead; manganese; marine sediments; minerals; nickel; organic acids and salts; physicochemical properties; polychlorinated biphenyls; polycyclic aromatic hydrocarbons; porosity; potassium; remediation; sodium; soil pollution; strawberries; toxicity; zinc;     Show all 35 Subjects
Abstract:
... A harbour sediment, previously remediated, was tested for soilless strawberry cultivation (Camarosa and Monterey cultivars), as an innovative, cost-effective and environment-friendly approach of sediment management. Sediments were tested as such (TS100) and mixed 1/1 (v/v) with a peat-based commercial substrate (TS50), using the peat-based medium as control (TS0). Substrates were characterized for ...
DOI:
10.1016/j.chemosphere.2019.124651