卡斯特系统中人为微纤维的问题:评估水和沉积物
Valentina Balestra1, Matteo Galbiati2, Stefano Lapadula2
1Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Italy; Biologia Sotterranea Piemonte - Gruppo di Ricerca, Italy.
Chemosphere
|July 10, 2024
概括
微纤维 (MF) 污染了岩环境,天然的MF比合成的更为普遍. 这凸显了在这些敏感的水生生态系统中对MF污染的监测的迫切需要.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 分析化学 分析化学
背景情况:
- 微纤维 (MFs) 是各种环境和生物体中发现的新兴微污染物.
- 在微塑料分析中,自然和再生的MF经常被忽视,其降解的理解也很差.
- 了解MFs对生态的影响对于环境保护至关重要.
研究的目的:
- 调查MFs在岩水生环境中的存在和特征.
- 评估MFs在水和沉积物样本中的积累和组成.
- 突出MF污染在受保护的地息地中的重要性.
主要方法:
- 从古典卡斯特地区的洞穴和泉源收集水和沉积物样本.
- 使用显微镜和光谱学分析MF.
- 基于尺寸,光和材料组成的MF的表征.
主要成果:
- 在所有水和沉积物样本中检测到MF,这表明岩系统中存在广泛的污染.
- 沉积物中的MF度高于水中的MF度,这表明随着时间的推移而积累.
- 纤维素MF占主导地位 (超过80%),合成MF仅占15-22%,与全球织生产趋势相矛盾.
结论:
- 石灰岩水生环境受到微纤维的严重污染,自然和再生类型的普遍性显著.
- 为了有效保护物种,保护息地和管理水资源,MF污染需要在地地区进行紧急监测.
- 未来的研究应该扩大MF分析在不同的水生环境,考虑到地表地下生态连接.
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