一次性口罩微塑料污染对水生环境和微藻生长的影响
Adian Khoironi1,2, Hadiyanto Hadiyanto3,4,5, Eko Hartini1,2,6
1Centre of Biomass and Renewable Energy (CBIORE), Diponegoro University, Semarang, Indonesia.
概括
一次性口罩废弃物大大降低了淡水质量,并伤害了微藻. 这项研究揭示了面具碎片对水的参数产生影响,并损害了Chlorella sp. 细胞,造成环境危害.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生态毒理学 生态毒理学
背景情况:
- 随着COVID-19大流行,一次性医疗口罩的广泛使用.
- 这些口罩的不当处置导致了环境污染的增加,特别是在水生生态系统.
- 人们担心口罩废弃物对水质和水生微生物的影响.
研究的目的:
- 调查一次性口罩废弃物对淡水质量的影响.
- 评估口罩废弃物对微藻生物质量 (Chlorella sp. ) 的情况.
主要方法:
- 一次性口罩 (未经处理和经过微生物处理) 在淡水和微藻培养中化三个月.
- 分析了水质参数 (COD,BOD,DO,pH).
- 使用光谱学 (FTIR),扫描电子显微镜 (SEM) 和近距离分析来评估生物质质量和微塑料存在.
主要成果:
- 一次性口罩改变了水质的关键参数,包括化学氧需求 (COD),生物氧需求 (BOD),溶氧 (DO) 和pH.
- 在100天后,在水中检测到微塑料纤维.
- 福里埃变换红外光谱显示生物质的化学变化,SEM显示了微藻细胞膜的损伤.
结论:
- 一次性口罩废弃物对淡水质量产生负面影响.
- 面具碎片化和相关的微生物污染会损害微藻,抑制它们的生长.
- 使用过的一次性口罩对水生生态系统构成重大环境危害.
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