polychlorinated dibenzo-p-dioxins
Mechanisms for the formation of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) from chlorinated toluenes
... PCDD/F polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans 12 (PCDD/F) from chlorinated toluenes, using quantum chemical ...
15
The survey of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls levels in pasteurized cow’s milk collected in Qazvin
... Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/PCDFs), collectively termed dioxins, as well as polychlorinated biphenyls (PCBs) are widespread ...
5
Examination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in process water of kraft pulp bleaching mill using chlorine dioxide from the aspect of environmental water quality
... of dioxins – polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, coplanar polychlorinated biphenyls – in en- vironmental water is restricted to less than 1 ...
6
Emission of Polychlorinated Dibenzo-p-Dioxins (PCDDs) and Polychlorinated Dibenzofurans (PCDFs) from Underfiring System of Coke Oven Battery
... 1996]. Dioxins may be also formed during chemical, thermal, photochemical and enzymatic ...that polychlorinated dibenzo-p- dioxins and polychlorinated dibenzofurans are formed in ...
9
Mechanisms of transformation of polychlorinated diphenyl ethers into polychlorinated dibenzo-p-dioxins and dibenzofurans
... 501 Frisch, M.J., Trucks, G.W., Schlegel, H.B., Scuseria, G.E., Robb, M.A., Cheeseman, J.R., 502 Scalmani, G., Barone, V., Mennucci, B., Petersson, G.A., Nakatsuji, H., Caricato, M., 503 Li, X., Hratchian, H.P., ...
9
Effect of colestimide on the concentrations of polychlorinated dibenzo-p-dioxins, polychlorinated dizenzofurans, and polychlorinated biphenyls in blood of Yusho patients
... To estimate the TEQ concentrations, we introduced ND (less than the detection limit) values to half values of the detection limit and calculated based on the TEF values proposed by the WHO [23]. The statistical analysis ...
7
Exposure to Dioxins and Furans at the Bormeh Kingtom Dumpsite in the Western Area of Sierra Leone
... to Polychlorinated dibenzo-p-dioxins (PCDD), commonly known as Dioxins, and po- lychlorinated dibenzofurans (PCDF), commonly known as Furans, by eating high-fat foods such as milk prod- ...
11
Concentrations of PCDD/Fs in human blood: A review of data from the current decade
... Abstract: Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzo-p-furans (PCDD/Fs) are environmental pollutants with a great persistence, capacity of ...
23
Polychlorinated dioxins, furans, and biphenyls in blood of children and adults living in a dioxin-contaminated area in Tokyo
... Polychlorinated dibenzo-p-dioxins (PCDDs), polychlori- nated dibenzofurans (PCDFs), and coplanar (or dioxin-like) polychlorinated biphenyls (CoPCBs), collectively referred to as ...
10
Vapour Pressure Determination for Dibenzo p dioxin, Dibenzofuran, Octachlorodibenzo p dioxin and Octachlorodibenzofuran Using a Knudsen Effusion Method
... Polychlorinated dibenzo- p-dioxins/dibenzofurans (PCDD/ Fs) are worldwide encountered toxic substances known as persistent ...the dioxins emission from those ...
5
Polychlorinated Dibenzofurans and Dibenzo p Dioxin in Tree Bark from an Industrialized Area: What the 2,3,7,8 Cl Substituted Congeners Tell Us, and What Is Missing
... analyzed polychlorinated dibenzofurans (PCDF) and dibenzo-p-dioxins (PCDD) in 27 tree bark samples from the industrialized area near Sauget, Illinois, ...
7
Formation of dibenzo-p-dioxins and dibenzofurans in oxidation of 2-chlorophenol over iron oxide/silica surface
... by detection of small amounts of 2,4-DCP, 2,6-DCP, 2,4,6-TriCP, 1,2-DCBz and 1,2,3-TriCBz in the present experiments. These species form by electrophilic halogenations of 2-CP and MCBz, in a process that could be ...
5
Polychlorinated dibenzo p dioxines and dibenzofurans in agricultural soils of the Czech Republic
... The set of 102 samples of agricultural soils was taken for the study of the load of agricultural soils with polychlori- nated dibenzo-p-dioxins and dibenzofuranes (PCDDs/Fs). The background value of ...
5
Kinetics of polychlorinated biphenyls in Bactrian camels
... The study aimed to determine the accumulation and depuration of polychlorinated biphenyls (PCBs) in Bactrian camels. Four lactating, two-humped camels (Camelus bactrianus) received 0.8 mg PCBs (1.3 μg/kg body ...
8
SUBURBAN BREASTFED INFANTS IN KLANG VALLEY ARE AT HIGHER RISK OF DIOXINS TOXICITY
... About four mothers took more than 60 grams of fat per day and they were found to have a higher mean of 0.23 (±0.30) pg I-TEQ dioxins / gram fat milk. This was significantly higher compared to mothers who took less ...
5
Epidemiological approaches in the investigation of environmental causes of cancer: the case of dioxins and water disinfection by-products
... the dioxins and furans are highly toxic che- micals and TCDD is among the most toxic compounds tested in the ...for dioxins we have a usable scheme for the measurement of the toxicity of a mixture that has ...
10
One-pot, clean and energy efficient synthesis of dibenzo[b,f][1,4]oxazepine derivatives promoted by ultrasound
... Analysis of the mixture by GC-MS revealed that, at the beginning of the reaction, formation of imine I is favor than dibenzo[b,f][1,4] oxazepine 3a (Scheme 4). It noteworthy that, using ultrasonic irradiation on ...
10
An Environmental Risk Evaluation Method Employing Atmospheric Dispersion Models and GIS
... of dioxins released from sources can be quantitatively ...of dioxins emitted from specific incinera- tors; using GIS to conduct overlay with population and land environment spatial distribution; and ...
17
(3,4),(6,7)Dibenzo 9,10 dicyanotriquinacene
... The title compound, C20H12N2, displays slightly lengthened CÐC bonds at the central C atom of the triquinacene Ê and wide exocyclic angles at the framework mean 1.572 A benzo-annelation[r] ...
9
Preparation and reactivity of biomass derived dihydro dioxins
... As the second most abundant natural polymer, lignin will contribute to a sustainable future.[1] Whilst lignin has a complex structure, its construction from arylpropene units [2] means i[r] ...
6