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| 基于畜禽粪便的有机肥中雌激素污染特征 |
| Characteristics of estrogen contamination in organic fertilizers derived from livestock manures |
| 投稿时间：2018-10-04 |
| DOI：10.13254/j.jare.2018.0264 |
| 中文关键词: 畜禽粪便，鸡粪，猪粪，牛粪，有机肥，雌激素，检出率 |
| 英文关键词: livestock manures, chicken manure, swine manure, cow manure, organic fertilizers, estrogen, detection ratio |
| 基金项目:国家自然科学基金项目（41771523，41977121） |
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| 中文摘要: |
| 为了解基于畜禽粪便的有机肥中残留雌激素的污染特征，防控有机肥生产中的污染风险。采集了市面上基于鸡粪、猪粪、牛粪制备的17种有机肥，测定了其有机质、氮、磷和钾含量；采用SPE-HPLC/FLD法检测了样品中雌三醇（E3）、17β-雌二醇（17β-E2）、双酚A（BPA）、炔雌醇（EE2）四种雌激素的含量，并将结果与新鲜鸡粪、猪粪、牛粪中四种雌激素含量进行对比。结果表明，鸡粪、猪粪和牛粪有机肥中均存在有机质含量偏低的样品；鸡粪有机肥中E3、17β-E2、BPA均值（干质量计）分别为270.22、2.71、87.93 μg·kg-1；猪粪有机肥中E3、17β-E2、BPA、EE2均值为609.71、41.84、32.69、46.74 μg·kg-1；牛粪有机肥中E3均值为50.96μg·kg-1。畜禽粪便有机肥存在雌激素污染风险，且E3风险最大。所检测的三种畜禽粪便制备的有机肥中，牛粪有机肥雌激素含量、检出率均最低。有机肥中E3、17β-E2、BPA、EE2检出率分别为47.06%、11.76%、17.65%、5.88%，四种雌激素在新鲜粪便中检出率则为67.74%、70.97%、70.97%、58.06%，有机肥中雌激素检出率低于新鲜畜禽粪便。综上可见，基于畜禽粪便的有机肥中仍会有雌激素残留，应引起重视。 |
| 英文摘要: |
| Understanding estrogen contamination characteristics of organic fertilizers derived from livestock manures is important for organic fertilizer production and contamination control. In the present study, 17 organic fertilizers derived from chicken, swine, and cow manures were collected from a market. Organic matter, nitrogen, phosphorus, and potassium contents of organic fertilizers were determined. The concentration of estriol (E3), 17β-estradiol (17β-E2), bisphenol A (BPA), and ethinyl estradiol (EE2) were detected by SPE-HPLC/FLD. At the same time, we compared the estrogen concentrations in organic fertilizers with fresh livestock manures. Results showed that organic fertilizers with low organic matter were detected in the organic fertilizer samples derived from chicken, swine, and cow manures. The average value (dry weight) of E3, 17β-E2, and BPA in organic fertilizers derived from chicken manures were 270.22, 2.71 μg·kg-1, and 87.93 μg·kg-1, respectively. The average values of E3, 17β-E2, BPA, and EE2 in organic fertilizers derived from swine manures were 609.71, 41.84, 32.69 μg·kg-1, and 46.74 μg·kg-1, respectively. The average value of E3 in organic fertilizers derived from cow manures was 50.96 μg·kg-1. Organic fertilizers had a large risk of estrogen contamination, and the risk of E3 contamination was higher than that of the other estrogens. Additionally, the concentration and detection rates of estrogen in cow organic fertilizers were lower and safer. The detection rates of E3, 17β-E2, BPA, and EE2 in organic fertilizers were 47.06%, 11.76%, 17.65%, and 5.88%, respectively, while detection rates were 67.74%, 70.97%, 70.97%, and 58.06% in fresh livestock manures, respectively. The detection rates of estrogen in organic fertilizers were lower than that of fresh livestock manures. The conclusion is that there are estrogen residues in organic fertilizers derived from livestock manures, which needs further attention. |
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