Effects of per-and polyfluoroalkyl substances(PFASs)on hatching of Folsomia candida(Collembola)on soil  

作　　者：Fang Liang Zhu Li Zinan Wang Xin Ke Longhua Wu Peter Christie Yongming Luo 

机构地区：[1]State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China [2]University of the Chinese Academy of Sciences,Beijing 100049,China [3]College of Resources and Environment,Southwest University,Chongqing 400716,China [4]Center for Excellence in Molecular Plant Sciences,Chinese Academy of Sciences,Shanghai 200032,China

出　　处：《Soil Ecology Letters》2024年第4期77-84,共8页土壤生态学快报(英文)

基　　金：funded by the National Natural Science Foundation of China(Grant Nos.41977136 and 41991334).

摘　　要：Egg hatching of the soil collembolan Folsomia candida and the effects of per-and polyfluoroalkyl substances were investigated.New and effective laboratory methods for egg hatching studies with soil collembolans were established.Per-and polyfluoroalkyl compounds(PFASs)have been used industrially worldwide and are persistent organic pollutants in many soils.Twenty eggs laid by synchronized adults of the collembolan Folsomia candida were added to each Petri dish containing compressed soil substrate mixed with perfluorooctanoic acid(PFOA),heptafluorobutyric acid(PFBA),or 6:2 chlorinated polyfluoroalkyl ether sulfonic acid(F-53B),and after 25 d of exposure the number hatched declined on average by 6.9%−49.7%,10.3%−24.1%,and 3.4%−18.6%,respectively.PFASs delayed the peak of hatching by one day,and at different concentrations reduced the number of eggs hatched during the peak by 16.7%−30%and 23.3%−43.2%in PFOA and PFBA treatments,respectively.In the presence of F-53B the number of eggs hatched declined by 73.3%but the number of individuals increased by 29.3%at higher concentrations.The characteristics of egg hatching were stable and sensitive to PFASs,and may be suitable for use as indicators in the screening of contaminated soils for environmental risk assessment.

关 键 词：PFOA PFBA F-53B soil animals soil mesofauna SPRINGTAILS soil pollution assessment life history indicator 

分 类 号：S156[农业科学—土壤学]