牛粪DOM对17β-雌二醇在东北黑土中降解的影响
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摘要
为了探讨共存牛粪DOM对17β-雌二醇降解的影响,以17β-雌二醇为供试激素,分析牛粪DOM携带外来菌群对雌激素降解的影响,同时研究了雨水淋溶环境下,不同浓度牛粪DOM对17β-雌二醇降解的影响。研究结果表明牛粪DOM对17β-雌二醇在东北黑土中前两天的降解速率有显著影响,灭菌DOM明显抑制了17β-雌二醇在土壤中的降解,而新鲜DOM携带的外来菌群促进了雌二醇的降解;本实验条件下,低浓度DOM的添加促进17β-雌二醇在黑土中的降解,而高浓度DOM的添加,明显抑制17β-雌二醇在黑土中的降解。
In order to find the influence of DOM on 17β-E2 degradation characteristics, 17β-E2 was used as target hormone to study the effect of flora carrying by cattle manure DOM on estrogen, and the effect on the degradation of 17β-E2 with the different concentration. The experiment results showed coexisted cattle manure DOM have a significant impact on 17β-E2 degradation.the degradation of 17β-E2 is inhibited by the presence of sterilized cattle manure DOM, meanwhile, the degradation of 17β-E2 is enhanced by non-sterilized cattle manure DOM carrying flora. In this study, coexisted cattle manure DOM enhanced the 17β-E2 degradation at a lower concentration, while the opposite effect occurred when DOM concentration increased to high level.
In order to find the influence of DOM on 17β-E2 degradation characteristics, 17β-E2 was used as target hormone to study the effect of flora carrying by cattle manure DOM on estrogen, and the effect on the degradation of 17β-E2 with the different concentration. The experiment results showed coexisted cattle manure DOM have a significant impact on 17β-E2 degradation.the degradation of 17β-E2 is inhibited by the presence of sterilized cattle manure DOM, meanwhile, the degradation of 17β-E2 is enhanced by non-sterilized cattle manure DOM carrying flora. In this study, coexisted cattle manure DOM enhanced the 17β-E2 degradation at a lower concentration, while the opposite effect occurred when DOM concentration increased to high level.
引文
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[2]PATYNA P J,DAVI R A, PARKERTON T F,et al.A proposed multigeneration protocol for Japanese medaka(oryziaslatipes)to evaluate effects of endocrine disruptors[J].Science of the Total Environment,1999,233(1-3):211-220.
[3]GILANNEJAD N,DORAFSHAN S, HEYRATI F P,et al.Vitellogenin expression in wild cyprinid Petroleuciscusesfahani as a biomarker of endocrine disruption along the Zayandeh Roud River, Iran[J].Chemosphere, 2016(144c):1342–1350.
[4]Hansen P D, Dizer H,Hock B,et al. Vitellogenin-a biomarker for endocrine disruptors[J].Trends in Analytical Chemistry, 1998,17:448-451.
[5]BISWAS S, KRANZ, W L, SHAPIRO C A,et al. Effect of rainfall timing and tillage on the transport of steroid hormones in runoff from manure amended row crop fields[J].Journal of Hazardous Materials,2017,324:436–447.
[6]COLUCCI M S,BORK H,TOPP E.Persistence of estrogenic hormones in agricultural soils:I.17 beta-estradiol and estrone[J].Journal of Environmental Quality, 2001,30:2070-2076.
[7]王代懿等.水分对典型天然性激素在我国东北黑土中降解的影响[J].安全与环境学报,2014(4):232-237.
[8]ARNON S, DAHAN O,ELHANANY S,et al. Trasport of testosterone and estrogen from dairy-farm waste lagoons to groundwater[J]. Environmental Science and Technonlogy, 2008, 42:5521-5526.
[9]ZITNICKA K K, SHAPPELL N W,HAKKB H,et al.Effects of liquid swine manure on dissipation of 17β-estradiol in soil[J].Journal of Hazardous Materials,2011,186:1111-1117.
[10]ZSOLNAY A.Dissolved organic matter(DOM):antifacts, definitions and functions[J].Geodema,2003,113:187-209
[11]LAI KM,JOHNSON K L,SCRIMSHAW M D, et al.Binding of waterborne,steroid estrogens to solid phases in river and estuarine systems[J].Environmental Science and Technology,2000,34:3890-3894.
[12]STUMPE B,MARSCHNER B. Dissolved organic carbon from sewage sludge and manure can affect estrogen sorption and mineralization in soils[J].Environmental Pollution,2010,158(1):148-154.
[13]MYNENI S C B, BROWN J T,Martinez G A,et al. Imaging of humic substance macromolecular structures in water and soils[J].Science,1999,286:1335-1337.
[14]SHENG G D, XU C,XU L,et al.Abiotic oxidation of 17-estradiol by soil manganese oxides[J].Environmental Pollution,2009,157:2710-2715.