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	Migration of natural estrogens around a concentrated dairy-feeding operation
	Li Y. X. ; Han W. ; Yang M. ; Feng C. H. ; Lu X. F. ; Zhang F. S.
	2012
关键词	Natural estrogens Dairy feeding operation Migration Soil Sediment tandem mass-spectrometry steroid-hormones lagoon samples waste-water degradation soils river 17-beta-estradiol persistence environment
英文摘要	Concentrated animal feeding operations have been recognized as one of the most important contributors of natural estrogens which show significant endocrine-disrupting properties in aquatic environments. In this study, the concentrations of 17 alpha-estradiol (17 alpha-E2), 17 beta-estradiol (17 beta-E2), estrone (E1), and estriol (E3) in several matrices, including soils (surface and deep), sediments (surface and deep), and groundwaters, around a typical dairy farm were surveyed using gas chromatography/mass spectrometry. Of the two farmlands, surface and subsurface sediments in waste lagoon and along effluent drainage drench, the concentrations of 17 alpha-E2, 17 beta-E2, and E1 ranged from below detection limit to the highest level of 6.60 mu g/kg, except that E3 was not detectable. Three estrogens of 17 alpha-E2, 17 beta-E2, and E1 with the concentrations of 3.18-31.61 ng/L were observed in two groundwater samples. The results clearly demonstrated the vertical migration and horizontal transport of estrogens in the investigated area. Within 750-m distance, it was observed the attenuation of 17 alpha-E2, 17 beta-E2, and E1 along the effluent route and the horizontal migration of estrogens was less than 1,350 m in this survey.
出处	Environmental Monitoring and Assessment
卷	184
期	8
页	5035-5041
收录类别	SCI
语种	英语
ISSN号	0167-6369
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/26865]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li Y. X.,Han W.,Yang M.,et al. Migration of natural estrogens around a concentrated dairy-feeding operation. 2012.

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