New Environmental Pollution Findings from D. Lorchner et al Outlined

Ecology Daily News |

2019 JUN 12 (NewsRx) -- By a News Reporter-Staff News Editor at Ecology Daily News -- Investigators publish new report on Environmental Pollution. According to news originating from Berlin, Germany, by NewsRx correspondents, research stated, “1,3,5-Tris-(2,3-dibromopropyl)-1,3,5-triazine-2,4,6-trione (TDBP-TAZTO) is an emerging brominated flame retardant which is widely used in several plastic materials (electric and electronic equipment, musical instruments, automotive components). However, until today, no photochemical studies as well as the identification of possible phototransformation products (PTPs) were described in literature.”

Our news journalists obtained a quote from the research, “Therefore, in this study, UV-(C) and simulated sunlight irradiation experiments were performed to investigate the photolytic degradation of TDBP-TAZTO and to identify relevant PTPs for the first time. The UV-(C) irradiation experiments show that the photolysis reaction follows a first-order kinetic model. Based on this, the photolysis rate constant k as well as the half-life time t were calculated to be k=(41 ? 5 ? 10) min and t=(17 ? 2) min. In comparison, a minor degradation of TDBP-TAZTO and no formed phototransformation products were obtained under simulated sunlight. In order to clarify the photochemical behavior, different chemicals were added to investigate the influence on indirect photolysis: (i) HO for generation of hydroxyl radicals and (ii) two quenchers (2-propanol, sodium azide) for scavenging oxygen species which were formed during the irradiation experiments. Herein, nine previously unknown PTPs of TDBP-TAZTO were detected under UV-(C) irradiation and identified by HPLC-(HR)MS. As a result, debromination, hydroxylation, and dehydrobromination reactions could be presumed as the main degradation pathways by high-resolution mass spectrometry.”

According to the news editors, the research concluded: “The direct as well as the OH radical-induced indirect photolysis were observed. Graphical abstract .”

For more information on this research see: 1,3,5-Tris-(2,3-dibromopropyl)-1,3,5-triazine-2,4,6-trione: kinetic studies and phototransformation products. Environmental Science and Pollution Research, 2019;26(16):15838-15846. (Springer - www.springer.com; Environmental Science and Pollution Research - http://www.springerlink.com/content/0944-1344/)

The news correspondents report that additional information may be obtained from R. Koppen, Bundesanstalt fur Materialforschung und -prufung (BAM), Berlin, Germany, . Additional authors for this research include L.W. Kroh and R. Koppen.

The direct object identifier (DOI) for that additional information is: https://doi.org/10.1007/s11356-019-04815-w. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

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