Search results for "BROMINATED FLAME RETARDANTS"
showing 3 items of 3 documents
Can PBDEs affect the pathophysiologic complex of epithelium in lung diseases?
2020
Brominated flame-retardant (BFRs) exposure promotes multiple adverse health outcomes involved in oxidative stress, inflammation, and tissues damage. We investigated BFR effects, known as polybrominated diphenyl ethers (PBDEs) (47, 99 and 209) in an air-liquid-interface (ALI) airway tissue derived from A549 cell line, and compared with ALI culture of primary human bronchial epithelial cells (pHBEC). The cells, exposed to PBDEs (47, 99 and 209) (0.01-1 mu M) for 24 h, were studied for IL-8, Muc5AC and Muc5B (mRNAs and proteins) production, as well as NOX-4 (mRNA) expression. Furthermore, we evaluated tight junction (TJ) integrity by Trans-Epithelial Electrical Resistance (TEER) measurements, …
Analytical challenges to determine emerging persistent organic pollutants in aquatic ecosystems
2018
Emerging persistent organic pollutants (ePOPs) include polybrominated diphenyl ethers (PBDEs) and perfluorooctane sulfonyl fluoride/perfluorooctane sulfonate (POSF/PFOS), which are newly listed in the Stockholm Convention. Other ePOPs, which have not been regulated, include organophosphate flame retardants (PFRs), novel brominated flame retardants (NBFRs) and other perfluoroalkyl substances (PFASs). Often ePOPs data related to occurrence, toxicity, impact or environmental behavior are insufficient or inadequate because of the lack of proper analytical methods to obtain them. Thus, a critical review of the analytical procedures proposed in the last six years (2011–2017) for determining ePOPs…
Bromēto liesmas slāpētāju noteikšana medību gaļas paraugos ar augstas izšķirtspējas masspektrometrijas metodēm
2017
Bromēto liesmas slāpētāju noteikšanas medību gaļas paraugos ar augstas izšķirtspējas masspektrometrijas metodēm. Bāliņš Rolands, zinātniskais vadītājs: Dr. ķīm., Dzintars Začs, konsultante: Ķīm. maģ., doktorante Jekaterina Rjabova. Maģistra darbs, 47 lappuses, 9 attēli, 21 tabula, 30 literatūras avoti, 2 pielikumi. Latviešu valodā. Maģistra darbā ir apkopota literatūra par analizētajiem savienojumiem, to pielietošanu, toksiskumu, izplatību dabā un to analīžu metodēm. Iegūtie rezultāti ir apkopoti tabulu un diagrammu veidā. Darbā tika veikta bromēto liesmas slāpētāju tetrabrom bisfenola A (TBBPA), heksabromciklododekāna (HBCDD) un polibromēto difenil ēteru (PBDEs) noteikšana medījumu gaļas p…