SUN Yu-jing,CHENG Fei,MA Xue,LI Hui-zhen,YOU Jing.Assessing Estrogenic Activity in Sediments from a Typical E-waste Recycling Area by a Combination of Chemical Analysis and Bioassays[J].Journal of Instrumental Analysis,2025,44(08):1676-1682.
SUN Yu-jing,CHENG Fei,MA Xue,LI Hui-zhen,YOU Jing.Assessing Estrogenic Activity in Sediments from a Typical E-waste Recycling Area by a Combination of Chemical Analysis and Bioassays[J].Journal of Instrumental Analysis,2025,44(08):1676-1682. DOI: 10.12452/j.fxcsxb.250314192.
Assessing Estrogenic Activity in Sediments from a Typical E-waste Recycling Area by a Combination of Chemical Analysis and Bioassays
Understanding the environmental occurrence and biological effects of endocrine-disrupting chemicals associated with e-waste is important. In this study,sediment samples were collected from the vicinity of a typical e-waste recycling area in Qingyuan,Guangdong. Chemical analysis combined with cell-based bioassays were employed to quantify estrogenic effects and identify potential pollutants. The results revealed that the sediments exhibited estrogen receptor activity,with estrogenic equivalents ranging from 0.25 to 0.56 ng/g dw. Various pollutants associated with estrogenic activity were detected,including parabens,triclosan,hormones,alkylphenols and bisphenols. Estrone and bisphenol A were identified as the primary contributors,accounting for 3.75% to 33.6% of the total estrogenic activity in the sediments. The e-waste recycling activities were found to be the main source of bisphenol-related estrogenic disruptors. The combined application of chemical analysis and biological testing techniques not only enables high-sensitivity identification of trace environmental estrogenic compounds but also reveals the possible causative association of pollutants in environmental matrices by quantifying the contributions of target pollutants to the total estrogenic activity. This method provides effective technical support to accurately identify environment pollutants with adverse effects and their potential sources.
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