Category: benzoxazole. Recently I am researching about CHEMICALS, Saw an article supported by the Dutch Ministry of Infrastructure and Water Management. Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Wassenaar, PNH; Verbruggen, EMJ; Cieraad, E; Peijnenburg, WJGM; Vijver, MG. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl
The fish bioconcentration factor (BCF) is an important aspect within bioaccumulation assessments. Several factors have been suggested to influence BCF values – including species, developmental stage, mixture exposure, and calculation method. However, their exact contribution to variance in BCF values is unknown. Within this study we assessed the relative impact of these test characteristics on BCF values and analyzed the reproducibility of aquatic exposure bioconcentration tests. Linear mixed effects analyses were performed on a newly develop database to investigate the relationship between the response variable (i.e. lipid normalized log BCF values) and several test characteristics as fixed effects. Lower BCF values were observed for substances that were simultaneously applied with high molecular weight polycyclic aromatic hydrocarbons compared to single substance exposure (with an average difference of -0.81 log BCF). Also, lower BCFs upon kinetic determination were observed compared to steady-state BCFs (log BCF -0.27), and lower BCFs for species from the Ostariophysi subcohort level (log BCF -0.17 to -0.15). In addition, data analysis showed high variation within BCF values for single substances (average SD = log BCF 0.21), which questions the robustness of the current bioaccumulation assessments. For example, the 95% confidence range of a BCF value of 2500 ranges from 953 (‘not-bioaccumulative’) to 6561 (‘very bioaccumulative’). Our results show that the use of one single BCF leads to a high uncertainty in bioaccumulation assessments. We strongly recommend that within future bioconcentration studies, the used experimental design and test conditions are described in detail and justified to support solid interpretation. (C) 2019 The Authors. Published by Elsevier Ltd.
Category: benzoxazole. Welcome to talk about 92-86-4, If you have any questions, you can contact Wassenaar, PNH; Verbruggen, EMJ; Cieraad, E; Peijnenburg, WJGM; Vijver, MG or send Email.
Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem