Comparative hepatic microsomal biotransformation of selected PBDEs, including decabromodiphenyl ether, and decabromodiphenyl ethane flame retardants in Arctic marine-feeding mammals

2011 ◽  
Vol 30 (7) ◽  
pp. 1506-1514 ◽  
Author(s):  
Melissa A. McKinney ◽  
Rune Dietz ◽  
Christian Sonne ◽  
Sylvain De Guise ◽  
Karl Skirnisson ◽  
...  
Keyword(s):  
Flame Retardants ◽  
Decabromodiphenyl Ether ◽  
Decabromodiphenyl Ethane

scholarly journals Response to Comment on “Concentrations of Brominated Flame Retardants in Indoor Air and Dust from Ireland Reveal Elevated Exposure to Decabromodiphenyl Ethane”

2020 ◽  
Vol 54 (18) ◽  
pp. 11634-11635
Author(s):  
Nina Wemken ◽  
Daniel Simon Drage ◽  
Mohamed Abou-Elwafa Abdallah ◽  
Stuart Harrad ◽  
Marie Ann Coggins
Keyword(s):  
Indoor Air ◽  
Flame Retardants ◽  
Brominated Flame Retardants ◽  
Elevated Exposure ◽  
Decabromodiphenyl Ethane

scholarly journals Concentrations of Brominated Flame Retardants in Indoor Air and Dust from Ireland Reveal Elevated Exposure to Decabromodiphenyl Ethane

2019 ◽  
Vol 53 (16) ◽  
pp. 9826-9836 ◽  
Author(s):  
Nina Wemken ◽  
Daniel Simon Drage ◽  
Mohamed Abou-Elwafa Abdallah ◽  
Stuart Harrad ◽  
Marie Ann Coggins
Keyword(s):  
Indoor Air ◽  
Flame Retardants ◽  
Brominated Flame Retardants ◽  
Elevated Exposure ◽  
Decabromodiphenyl Ethane

Mass balance of decabromodiphenyl ethane and decabromodiphenyl ether in a WWTP

Chemosphere ◽  
2009 ◽  
Vol 74 (3) ◽  
pp. 389-394 ◽  
Author(s):  
Niklas Ricklund ◽  
Amelie Kierkegaard ◽  
Michael S. McLachlan ◽  
Cajsa Wahlberg
Keyword(s):  
Mass Balance ◽  
Decabromodiphenyl Ether ◽  
Decabromodiphenyl Ethane

scholarly journals Preliminary Screening of Polybrominated Diphenyl Ethers (PBDEs); Decabromodiphenyl Ether (BDE-209) and Tetrabromobisphenol-A (TBBPA) Flame Retardants in Municipal Dumpsite in Delta State, Nigeria

2020 ◽  
pp. 1-10
Author(s):  
Oghenekohwiroro Edjere ◽  
Chukwunonso Elvis Stephen
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Flame Retardants ◽  
Soil Surface ◽  
Average Concentration ◽  
Soil Samples ◽  
Decabromodiphenyl Ether ◽  
Soil Matrix ◽  
Detectable Range ◽  
Petroleum Resources ◽  
Bde 209

Aims: This study is aimed at determining the concentration of two widely used BFRs; Decabromodiphenyl Ether (BDE-209) and Tetrabromo Bisphenol-A (TBBPA) in sediment and leachate samples. Place and Duration of Study: Field sampling were carried out from five major dumpsites around Warri Municipality, Delta State, Nigeria. Analyte extraction was done in 2017 at the Science laboratory, Federal University of Petroleum Resources, Effurun Delta State, Nigeria and quantification done in Switzerland by Bachema Analytical Laboratories in 2017. Methods: Three soil samples were collected from each site 15cm from the soil surface. Also, three leachate samples from three different trial pits done for each site. Collected soil samples were stored in glass bottles and labelled. While the leachate samples are stored using glass containers and labelled. The BFRs were extracted using Aceton and cyclohexane for each soil matrix and cyclohexane for the leachate samples, then the extract was analysed using GC coupled with an ECD supplied by Thermo Trace GC Ultra, Italy. Results: The results showed the average concentration for TBBPA in the sediments was 0.0234 g/kg and that of the BDE-209 was recorded as 0.1828 g/kg. Results from the leachate sample were below the detectable range of the analytical equipment, TBBPA (0.02 g/kg) and BDE (0.1 g/kg). There is no statistical difference between the mean concentration of TBBPA for the sediment in each of the locations (P>.05) and no difference (P>.05) for BDE-209 for the sediment in each of the locations (P>.05). Conclusion: Findings from this study holds that the concentration of TBBPA and BDE-209 in sediment is higher when compared with concentrations presented in other literatures studied in this report and this calls for immediate action due to the health risk associated with exposure in these municipalities.

Acute Aquatic Toxicity of Brominated Flame Retardants Decabromodiphenyl Ether (decaBDE) on Scenedesmus obliqnus

2013 ◽  
Vol 664 ◽  
pp. 469-472
Author(s):  
Jing Ye ◽  
Wei Hong Xia ◽  
Jia Lian
Keyword(s):  
Acute Toxicity ◽  
Flame Retardants ◽  
Aquatic Toxicity ◽  
Brominated Flame Retardants ◽  
Chlorophyll B ◽  
Inhibition Rate ◽  
Decabromodiphenyl Ether ◽  
Chlorophyll Contents ◽  
Acute Aquatic Toxicity ◽  
Low Dosage

In this study, the acute toxicity of brominated flame retardants decabromodiphenyl ether (decaBDE) on green alga Scenedesmus obliqnus has been investigated. Under laboratory conditions, low dosage of decaBDE (0.1, 0.2, 1, 5, 10 μg/L) can inhibit the growth of Scenedesmus obliqnus. The max inhibition rate was 27.39% by 10 μg/L decaBDE on day one. Chlorophyll contents were significantly inhibited by decaBDE. At the concentration of 10 μg/L, the inhibition rates of chlorophyll a and chlorophyll b were 68.1% and 86.0%, respectively. These results indicated that decaBDE pose toxicity on Scenedesmus obliqnus in the environment.

NPK Analysis of the Thermal Degradation of Decabromodiphenylether

2017 ◽  
Vol 68 (11) ◽  
pp. 2734-2738
Author(s):  
Mihai Dumitras ◽  
Dan Maftei ◽  
Anton Airinei ◽  
Nita Tudorachi ◽  
Alin Constantin Dirtu
Keyword(s):  
Thermal Degradation ◽  
Flame Retardants ◽  
Evolved Gas Analysis ◽  
Gas Analysis ◽  
Valuable Insight ◽  
Decabromodiphenyl Ether ◽  
Evolved Gas ◽  
Thermal Degradation Behavior ◽  
Insight Into ◽  
Bde 209

This study aims to investigate the thermal degradation behavior of decabromodiphenyl ether (BDE 209) by simultaneous TG/DTA under various conditions. Due to low volatility, high elution temperatures are needed when applying chromatographic techniques for this class of flame retardants (FR), resulting in thermal degradation affecting analysis results, but no systematic study has been reported. Kinetic analysis was performed by the non-parametric (NPK) method, and in correlation with evolved gas analysis (EGA) information and molecular modeling results, provided valuable insight into the kinetics and mechanism of BDE 209 thermal degradation. The conclusions were aimed at designing proper specific GC analytical methods for the selected FRs and serving for a better estimation of the human exposure to such compounds.

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