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Behavior of N-ethyl perfluorooctane sulfonamido acetic acid (N-EtFOSAA) in biosolids amended soil-plant microcosms of seven plant species: Accumulation and degradation (vol 642, pg 366, 2018)
Wen, Bei; Pan, Ying; Shi, Xiaoli; Zhang, Hongna; Hu, Xiaoyu; Huang, Honglin; Lv, Jitao; Zhang, Shuzhen
2021-11-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume801Pages:-
AbstractUpdated assessment on transfer of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) from feed to food is essential for understanding human exposure risk. A controlled feeding experiment was conducted for laying hens to reevaluate the transfer characteristics of dioxin-like compounds from feed to egg. Two fortified diets (1.17 and 5.13 pg TEQ g(-1) dry weight), made by blending with fly ash, were fed to laying hens for 14 days, followed by 28-days depletion. Levels of Sigma TEQ(PCDD/Fs+DL-PCBs) in eggs rapidly increased once exposure started, reaching at 1.98 and 6.86 pg TEQ g(-1) lw at the end of exposure for low and high-exposure groups, respectively, and dropped to under the European legislation (maximum levels: 5.0 pg TEQ g(-1) lw) after 28-days depletion. The quantitative depletions showed that the half-lives (T-1/2) of Sigma TEQ(PCDD/Fs) in eggs were 23 and 14 days for low-and high-exposure groups, respectively. The depletion and accumulation rates of PCDD/Fs were in the range of 0.026-0.151 and 0.005-0.016 day(-1), respectively, representing that the T-1/2 of PCDD/Fs in eggs ranged from 5 to 27 days. The depletion kinetics of DL-PCBs was not significant in egg. The hens with higher laying rates exhibited shorter T-1/2 of PCDD/Fs, implying that increasing laying rate could expedite the depletion of PCDD/Fs in egg. The T-1/2 of PCDD/Fs in egg were negatively correlated with the chlorine number, indicating that lower chlorinated congeners tended to be retained in the egg. Transfer rates of PCDD/Fs were in the range of 4-19%, which were lower than the previous results. These results were attributed to short exposure time and low bioavailability of PCDD/Fs in fly ash. Estimations of dietary intake highlighted the dietary risk of PCDD/Fs from feed to egg, which would pose limited adverse effects on human health. (C) 2021 Elsevier B.V. All rights reserved.
Department环境化学与生态毒理学国家重点实验室
KeywordPCDD/Fs Dioxin-like PCBs Half-life Transfer rate Estimated dietary intake
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46792
Collection环境化学与生态毒理学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Beijing Ctr Dis Prevent & Control, Beijing 100031, Peoples R China
Recommended Citation
GB/T 7714
Wen, Bei,Pan, Ying,Shi, Xiaoli,et al. Behavior of N-ethyl perfluorooctane sulfonamido acetic acid (N-EtFOSAA) in biosolids amended soil-plant microcosms of seven plant species: Accumulation and degradation (vol 642, pg 366, 2018)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,801:-.
APA Wen, Bei.,Pan, Ying.,Shi, Xiaoli.,Zhang, Hongna.,Hu, Xiaoyu.,...&Zhang, Shuzhen.(2021).Behavior of N-ethyl perfluorooctane sulfonamido acetic acid (N-EtFOSAA) in biosolids amended soil-plant microcosms of seven plant species: Accumulation and degradation (vol 642, pg 366, 2018).SCIENCE OF THE TOTAL ENVIRONMENT,801,-.
MLA Wen, Bei,et al."Behavior of N-ethyl perfluorooctane sulfonamido acetic acid (N-EtFOSAA) in biosolids amended soil-plant microcosms of seven plant species: Accumulation and degradation (vol 642, pg 366, 2018)".SCIENCE OF THE TOTAL ENVIRONMENT 801(2021):-.
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