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Littérature scientifique sur le sujet « Dechlorane Plus »

Auteur : Grafiati

Publié le 14 mars 2023

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Articles de revues sur le sujet "Dechlorane Plus"

Zhao, Tan, Hua Tang, Dazhou Chen, Feifei Huo et Lei Li. « Rapid analysis of dechloranes in sediment and soil by selective pressurized liquid extraction using Mg–Al layered double oxides as sorbents ». Analytical Methods 9, n^o 7 (2017) : 1168–76. http://dx.doi.org/10.1039/c7ay00009j.

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Ghelli, Elisa, Ronan Cariou, Gaud Dervilly, Giampiero Pagliuca et Teresa Gazzotti. « Dechlorane Plus and Related Compounds in Food—A Review ». International Journal of Environmental Research and Public Health 18, n^o 2 (14 janvier 2021) : 690. http://dx.doi.org/10.3390/ijerph18020690.

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Dechlorane Plus is a polychlorinated compound which has exclusively anthropic origin. This compound has been manufactured for close to 60 years for various applications, but mainly as flame retardant. Dechlorane Plus and other Dechlorane-related compounds (DRCs) are currently marketed as a replacement for Dechlorane, also known as Mirex, banned in 1978. These compounds share comparable properties to persistent organic pollutants (POPs), such as persistence in the environment, high lipophilicity, bioaccumulation through the food web and adverse effects on the environment and human health. Despite their long production history, they have been only recently reported in various environmental compartments, such as air, soil, and foodstuff. The aim of this review is to provide a picture of the current state of knowledge on worldwide DRC levels in food, in order to highlight gaps and research needs. The review compares the data on DRC contamination available in literature, considering different food categories and sampling country. In addition, it is specified whether the data were obtained from studies on foodstuff to estimate dietary intake, to evaluate the contamination near the e-waste treatment area or for environmental monitoring purposes.

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Brazeau, Allison L., Miren Pena-Abaurrea, Li Shen, Nicole Riddell, Eric J. Reiner, Alan J. Lough, Robert McCrindle et Brock Chittim. « Dechlorinated Analogues of Dechlorane Plus ». Environmental Science & ; Technology 52, n^o 10 (16 avril 2018) : 5619–24. http://dx.doi.org/10.1021/acs.est.8b00545.

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Hansen, Kaj M., Patrik Fauser, Katrin Vorkamp et Jesper H. Christensen. « Global emissions of Dechlorane Plus ». Science of The Total Environment 742 (novembre 2020) : 140677. http://dx.doi.org/10.1016/j.scitotenv.2020.140677.

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Soleman, Sani Rachman, Tomoko Fujitani, Yukiko Fujii et Kouji H. Harada. « Levels of Octachlorostyrene in Mothers’ Milk and Potential Exposure Among Infants in Sendai City, Japan 2012 ». International Journal of Environmental Research and Public Health 17, n^o 9 (28 avril 2020) : 3064. http://dx.doi.org/10.3390/ijerph17093064.

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Persistent organic pollutants can accumulate inside the human body, including in mothers’ milk, which may affect infant development. This cross-sectional study aimed to examine selected persistent organic pollutants in the milk of 100 mothers in Sendai city, Miyagi Prefecture, Japan. We used gas-chromatography-electron capture negative chemical ionization-mass spectrometry to check for octachlorostyrene, dechlorane (Dec) plus, Dec 602, Dec 603, and Dec 604. Octachlorostyrene was detected in 86 samples at more than the method detection limit (84 pg g-lipid−1) but no dechloranes were above the method detection limit (1 ng mL−1 for dechlorane plus, Dec 602, and Dec 603; 20 ng mL−1 for Dec 604). The mean octachlorostyrene concentration was 461 pg g-lipid−1, the median was 337 pg g-lipid−1, and the standard deviation 450 pg g-lipid−1. No baseline characteristics were associated with octachlorostyrene level except for mother’s occupation (stay-at-home mother, 353 ± 327 pg g-lipid−1; others, 531 ± 509 pg g-lipid−1). Octachlorostyrene was also significantly negatively correlated with lipid content (r = −0.35, p = 0.0004). However, the maximum intake of octachlorostyrene among infants in this study (3.5 ng/kg/day) was under the acceptable daily intake (30 ng/kg/day, derived from 12−month study in rats), and is therefore unlikely to pose a health risk.

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Wu, Zhong Ying, Lei Huang, Ying Long Gao, Qing Hao Guo et Ye Qing Sun. « The Effects of Dechlorane Plus on Toxicity ». Applied Mechanics and Materials 380-384 (août 2013) : 4163–66. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.4163.

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Dechlorane plus (DP) is a world-widely used flame retardant detected in the environment, biota and humans. The potential toxicity effect of DP is not well studied. In this research, mice were fed with DP-containing food. After two weeks, histopathological observation and oxidative stress was investigated in mouse liver. Our results demonstrated that over-dose DP induced inflammatory infiltration, hepatocellular swelling and oxidative stress in the mouse liver.

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NAKANO, Takeshi. « Chlorinated Flame Retardand : Dechlorane Plus ». Journal of Environmental Chemistry 26, n^o 2 (2016) : 51. http://dx.doi.org/10.5985/jec.26.51.

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Zhang, Qinghua, Chaofei Zhu, Haidong Zhang, Pu Wang, Yingming Li, Daiwei Ren et Guibin Jiang. « Concentrations and distributions of Dechlorane Plus in environmental samples around a Dechlorane Plus manufacturing plant in East China ». Science Bulletin 60, n^o 8 (avril 2015) : 792–97. http://dx.doi.org/10.1007/s11434-015-0768-1.

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Ma, Jin, et Xinghua Qiu. « Dechlorane Plus in Surface Soil of North China ». ISEE Conference Abstracts 2013, n^o 1 (19 septembre 2013) : 3035. http://dx.doi.org/10.1289/isee.2013.p-3-24-07.

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Zhang, Wang, Jun Huang, Gang Yu, Shubo Deng et Wanpeng Zhu. « Mechanochemical destruction of Dechlorane Plus with calcium oxide ». Chemosphere 81, n^o 3 (septembre 2010) : 345–50. http://dx.doi.org/10.1016/j.chemosphere.2010.07.025.

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Thèses sur le sujet "Dechlorane Plus"

Gallegos, América Rebeca Metzdorff. « Investigation on Legacy & ; Novel Brominated Flame Retardants in Antarctic indoor environments : levels, sources and fate ». Doctoral thesis, Università di Siena, 2019. http://hdl.handle.net/11365/1073781.

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Persistent Organic Pollutants (POPs) are a global environmental concern, having long been identified as harmful substances due to their toxicity, persistence, and bioaccumulation in humans and wildlife. The commercial mixtures Penta-BDE and Octa-BDE have been banned in the European Union because of their toxic effects. Hexabromocyclododecanes (HBCDs) are brominated aliphatic cyclic hydrocarbons used in building materials, upholstery textiles, and electronics. The aim of this thesis was to assess concentrations of brominated flame retardants (BFRs), including specifically polybrominated diphenyl ethers (PBDEs): IUPAC congener numbers BDE-28, -47, -66, -85, -99, -100, -153, -154, -183, hexabromocyclododecane (α-, β-, γ- HBCD), novel brominated flames retardants such as BTBPE, PBBZ, HBB, PBEB, PBT, TBECH (α, β) and Dechlorane Plus isomers (anti and syn) in dust samples from different indoor environments at Spanish Antarctic research station of Gabriel de Castilla, the Chilean Antarctic research station of Prof. Julio Escudero and the British RRS James Clark Ross research vessel. The mean concentrations of ∑9PBDEs were 41.5 ± 43.8 ng/g in Gabriel de Castilla, 27.2 ± 37.9 ng/g in RSS James Clark Ross and 18.7 ± 14.2 ng/g in Prof. Julio Escudero. The Gabriel de Castilla research station reported a total ∑9PBDEs concentration of 301 ng/g. BDE-183 was detected with the highest concentrations of 69, 24 and 18 ng/g in Lab 2, Bedroom 1 and the Living room, respectively. The Prof. Julio Escudero research station reported a total ∑9PBDEs concentration of 83 ng/g and its highest levels of PBDEs were detected in the Meeting room with 18 ng/g (BDE-99) and 14 ng/g (BDE-47).. RSS James Clark Ross reported a total ∑9 PBDEs concentration of 165 ng/g, while the highest concentration of BDE-153 was detected in the Sample storage room with 59 ng/g, followed by the Computer room with 15 ng/g. The mean concentration of ∑HBCD was highest in RRS James Clark Ross (761 ± 1043 ng/g) followed by Gabriel de Castilla (257 ± 407 ng/g) and Prof. Julio Escudero (15 ± 15 ng/g). The total ∑HBCD concentration was highest in RSS James Clark Ross with 5328 ng/g, followed by Gabriel de Castilla with 2310 ng/g and Prof. Julio Escudero with a lower concentration of 30 ng/g. The mean concentrations of ∑9NBFRs were 24.7 ± 34.1 ng/g in Gabriel de Castilla, followed by RSS James Clark Ross with 21.1 ± 110 ng/g and Prof. Julio Escudero with 1.07 ± 2.17 ng/g. In general, ∑9NBFRs were 2227 (ng/g) in Gabriel de Castilla followed by 1329 ng/g in RRS James Clark Ross and finally 86.5 ng/g in Prof. Julio Escudero. The highest level (905 ng/g) was detected in the Sample storage room at RRS James Clark Ross. Dechlorane Plus, syn-DP compound was detected in all rooms in the Spanish Gabriel de Castilla base; the highest concentrations were found in the Living room (388 ng/g), Bedroom 1 (222 g/g) and Lab 2 (194 ng/g). The isomer anti-DP was also detected in Igloo 2 (170 ng/g) and in the Living room (154 ng/g). In general, the analysis of air mass in order to determine possible sources and fates of these contaminants demonstrated that the sampling area are strongly influenced by anthropogenic impact. This suggests that the concentration of these chemicals in any indoor environment will depend on the types of products present in each research station. Although the estimated exposure is well below the corresponding reference doses (RfDs), caution is needed given the likely future increase in use of these FRs and the currently unknown contribution to human exposure by other pathways such as inhalation and diet.

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Chen, Chien-Liang, et 陳建良. « Rapid determination of Dechlorane Plus and Dechloranes in biota samples by matrix solid-phase dispersion and gas chromatography – electron-capture negative ion mass spectrometry ». Thesis, 2013. http://ndltd.ncl.edu.tw/handle/06478384501739497949.

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碩士
國立中央大學
化學學系
101
Dechlorane Plus, Dechlorane 602, Dechlorane 603 and Dechlorane 604 are chlorinated flame retardants that have been widely used as the substitution for mirex, but they have not been noticed as environmental contaminants until 2006. Regardless of their large molecular size and very high lipophilicity (log KOW > 9), Dechlorane Plus and related compounds have been detected in various aquatic and terrestrial species, supporting their bioaccumulation and biomagnification. A simple and effective method for the rapid analysis of five chlorinated flame retardants in various biota sample is described. The method involves the use of matrix solid-phase dispersion (MSPD) prior to their determination by gas chromatography – electron-capture negative ion mass spectrometry (GC-ECNI-MS) operating in the selected-ion-monitoring (SIM) mode. The parameters affecting the extraction efficiency of the target analytes from biota sample were optimized using a Box-Behnken design method. The optimal extraction conditions involved dispersing of freeze-dried biota sample (1 g) with 2 g of silica gel in a glass tube by a vigorous shaking (1.0 min) to obtain a dry homogenous mixture. This mixture was transferred to a glass column containing 1 g of Florisil, as the clean-up co-sorbent. The target analytes were then eluted with 20 mL of n-hexane. The extract was adjusted to 1 μL and then determined by GC-ECNI-MS. The limits of detection (LODs) were 0.6 − 2 pg/g. A preliminary result revealed that trace levels of chlorinated flame retardants were detected in various biota samples.

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Chapitres de livres sur le sujet "Dechlorane Plus"

Zhang, Jing, et William H. Starnes. « Mechanism for the Reductive Dehalogenation of "Dechlorane Plus" by Mixtures of Antimony(III) Oxide and Polymers ». Dans ACS Symposium Series, 213–23. Washington, DC : American Chemical Society, 2005. http://dx.doi.org/10.1021/bk-2006-0922.ch017.

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« and T B ab F le 5 shows 6%. Th R e -1 mobsyt several FR-HIPS f ec atliovgeen le v (5 el .8 o5f % ano ti fmeoarcmh) ulw at h io e n re stuhse ing a1:1 mixture of Dechlorane Plus at 3.2 mm. The lowest afterglow is al osnoyaotx th id ee4s % ee m s material decreases the afterglow in the UL-94 test an level. e T he wh d gives aUaL dd -9 it ». Dans Tomorrows Trends in Fire Retardant Regulations, Testing, and Applications, 43. CRC Press, 1996. http://dx.doi.org/10.1201/9781498705837-2.

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