面具废弃物结合污染物的环境风险:植物毒性,微生物群落,和碳循环
Yuchao Jiang1, Chunxiu Zhou2, Aman Khan3
1Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, China; Centre for Grassland Microbiome, State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou, Gansu Province 730000, China.
Journal of hazardous materials
|July 10, 2024
概括
面具废物污染土壤,损害植物生长,减少有益的细菌. 这项研究揭示了口罩污染会破坏土壤新陈代谢和重要营养循环,造成生态风险.
科学领域:
- 环境科学 环境科学
- 土壤生态学 土壤生态学
- 微生物学 微生物学
背景情况:
- 面具废物是一个日益增长的全球污染物,具有未知的土壤环境风险.
- 对于废弃口罩对陆地生态系统的生态影响的了解有限.
研究的目的:
- 调查土壤中的口罩废物的环境风险.
- 评估口罩废弃物对土壤微生物群落和功能的影响.
主要方法:
- 从垃圾填埋场收集了12个口罩废物进行分析.
- 分析了与口罩废物相关的金属,有机污染物和致病病毒.
- 对植物生长 (,Elymus nutans) 和土壤微生物指数 (Chao1指数) 的评价影响.
- 进行了基因组分析,以确定功能性基因变异.
- 采用结构方程建模,将口罩废物与土壤酶活动和营养循环联系起来.
主要成果:
- 面具废物中含有8种金属和4种有机污染物,形态变化最小.
- 含有污染物的口罩显著抑制了植物生长,将地下生物质减少了84.6%.
- 面具废物减少了微生物多样性,并改变了关键细菌种群的相对丰度.
- 观察到参与转化和ATP生产的功能基因减少.
- 在口罩废物上检测到致病病毒 (Herpesviridae, Tunggulvirus).
- 面具废物对土壤酶活动产生了负面影响,影响了碳和循环.
结论:
- 面具废物严重扰乱土壤健康和代谢功能.
- 不当的口罩处理对土壤生态系统构成相当大的环境风险.
- 这项研究强调了迫切需要有效的面具废物管理策略.
相关概念视频
Types of Toxins
1.7K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
1.7K
Administering Oxygen by Mask
310
Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
310
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Threats to Biodiversity
22.2K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.2K
The Roles of Bacteria and Fungi in Plant Nutrition
35.2K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
35.2K


