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基于的肥料中的雌激素和异雌激素残留物及其潜在的生态风险

Emmanuel Stephen Odinga¹, Xuwen Chen¹, Evance Omondi Mbao²

¹Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.

Journal of environmental management

|July 20, 2023

概括

适当处理的牲畜肥肥料显著减少了雌激素微污染物. 堆肥降低了污染,减轻了来自类固醇雌激素 (SE) 和异性雌激素 (XE) 对陆地生态系统的风险.

科学领域:

环境化学环境化学
农业科学农业科学
生态毒理学生态毒理学

背景情况:

牲畜便是一种有价值的肥料,但可能含有内分泌干扰化合物.
类固醇雌激素 (SE) 和双乙烯 (BPA) 等类固醇雌激素 (XE) 是令人担忧的关键污染物.
了解它们在肥中的含量对于评估生态风险至关重要.

研究的目的:

调查中国各地基于牲畜便的肥料中SEs和XE的污染水平.
评估农业土壤中与这些污染物相关的潜在生态毒理风险.
评估便处理工艺在减少微污染物负载方面的有效性.

主要方法:

从中国14个省份的71个农场收集了基于的肥料样本.
分析了雌激素 (E1),雌二醇 (E3),17α-雌二醇 (17α-E2),17β-雌二醇 (17β-E2) 和双 A (BPA) 的度.
计算的雌激醇等效量 (EEQ) 和风险系数 (RQs) 来评估生态毒理风险.

主要成果:

SE和XE经常发生 (66.67%-100%),不同地点的度各不相同.
河北省的SE和XE总含量最高;猪含量高于其他动物肥料.
堆肥显著减少了微污染物数量 (平均减少:87.65-534.02μg/kg),与原相比降低了雌激素风险.

结论:

基于肥料的肥料,特别是堆肥后的肥料,比原料肥料具有较低的雌激素风险.
38%的肥料对陆地生物有中高风险,基于估计的应用率.
优化肥料处理和施肥策略对于减轻农业生态系统中的SE和XE至关重要.

关键词:

生态风险评估生态风险评估基于物的肥料.剩余物剩余物剩余物类固醇雌激素是一种雌激素.这是一种异性雌激素.

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