评估污水污泥中的新兴和优先微型污染物:环境见解和分析方法
Diana Rede1,2, Ivan Teixeira1, Cristina Delerue-Matos1
1REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015, Porto, Portugal.
Environmental science and pollution research international
|December 12, 2023
概括
应用于农田的污水污泥 (SS) 可能含有污染物. 这项研究开发了一种敏感的分析方法,用于检测SS中的42种有机化合物,发现了16种存在的有机化合物,包括像α-endosulfan这样的持久有机污染物.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 农业学是一种农业学.
背景情况:
- 污水污泥 (SS) 在农业中的应用很常见,但可能会导致土地受到各种污染物的污染.
- 可持续的SS管理需要选择性方法来识别和定量污染物,以减轻生态和健康风险.
研究的目的:
- 开发和实施一种综合分析方法,用于评估SS中的新兴和优先微污染物.
- 评估农业中SS应用对环境的影响.
主要方法:
- 优化了一种快速,简单,廉价,有效,坚固和安全的 (QuEChERS) 提取方法与气体和液体色谱相结合.
- 确定了42种有机化合物,包括杀虫剂,阻燃剂和多环芳.
- 验证了回收,可重复性,检测极限 (LOD) 和量化极限 (LOQ) 的方法.
主要成果:
- 最优化的方法表现出高灵敏度,恢复率从59.5到117%,LOD从0.00700到0.271μggg-1.1.
- 在七个SS样本中检测到16种化合物,包括持久性有机污染物.
- 在所有样本中,α-endosulfan在0.110至0.571μggg-1.1的度中得到量化.
- 分析了农学参数和金属含量,重金属含量符合法律限制.
结论:
- 综合分析方法有效地识别和量化SS中的微污染物.
- 该研究有助于了解农业中SS管理对环境和可持续的影响.
- 虽然重金属含量在限制范围内,但有机污染物的存在需要仔细考虑安全的SS应用.
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