Study on the Effects of DOM on the Bioaccumulation of Perfluorinated Acids in Daphnia magna

2018 2nd International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Dai, Z.N.^1,2 ; Yang, A.L.^1,2 ; Fu, H.Y.^1,2

School of Environmental Science and Engineering, Xiamen University of Technology, Fujian

361024, China^1

Key Laboratory of Environmental Biotechnology, Fujian Province, University, 361024, China^2

关键词: Bond formation;    Daphnia magna;    Dissolved organic matters;    Electrostatic attractions;    Emerging contaminant;    Perfluorinated acids;    Perfluoroalkyl acids;    Spectra analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/146/1/012067/pdf
DOI  :  10.1088/1755-1315/146/1/012067

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Perfluoroalkyl acids (PFAs), one kind of emerging contaminants, have attracted great attentions in recent years. However, the study about their bioaccumulation mechanism remains scarce. In this research, the bioaccumulation of 6 kinds of PFAs in water flea Daphnia magna was studied in the presence of dissolved organic matter (DOM), and the possible interactions between DOM and PFCs were explored by spectra analysis. The results showed that DOM could decrease the bioaccumulation of PFAs at 10 and 20 mg•L-1, and increase the bioaccumulation at 1 mg•L-1. The decrease of BAF was in the range of 11 to 42% and 23 to 77% for FA and HA, respectively. The increase of BAF was in the range of 12 to 44% and 8 to 73% for FA and HA, respectively. The spectrum analysis indicated that the interaction of PFAs and DOM was not due to the bond formation reaction, but the electrostatic attraction.