河流洪水和塑料污染 - 将潜在的人类病原细菌送入农田
Chloe J Pow1, Rosie Fellows1, Hannah L White1
1Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK.
Environmental pollution (Barking, Essex : 1987)
|December 12, 2024
概括
在农田中的塑料垃圾可以携带有害细菌. 这项研究在农田的塑料上发现了致病细菌,其中一些耐抗生素,这构成了食物链的风险.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 通过地表水和洪水,在农田中塑料污染正在增加.
- 塑料碎片上的"塑球"可以容纳人类致病细菌.
- 塑料垃圾在将病原体运送到农田中的作用尚不清楚.
研究的目的:
- 在农田的塑料垃圾上量化可行的致病细菌.
- 评估检测到的细菌的抗菌耐药性.
- 评估通过塑料垃圾将病原体引入农业系统的风险.
主要方法:
- 从两条河边的五个农田收集了塑料垃圾.
- 对五种向致病细菌 (大肠杆菌,肠道肠球菌,沙门氏菌,坎皮洛巴克特菌和克莱布西拉菌) 进行选的塑料. ) 的情况.
- 对抗微生物药物耐药性测试的阳性殖民地.
主要成果:
- 塑料垃圾集中在河岸附近 (75%在30米以内).
- 49%的收集到的塑料被目标致病性细菌殖民.
- 在塑料上发现的几种致病细菌中检测到抗生素耐药性.
结论:
- 洪水运输的受污染的塑料碎片可以将致病细菌引入农田.
- 这对农业系统和粮食链构成了一个未定量的风险.
- 需要进一步的研究来量化这种新出现的环境和健康风险.
相关概念视频
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
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
Environmental Applications of Microorganisms
1
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1
Viral Recombination
23.3K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.3K
Microorganisms in Agriculture and Food industry
1
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
1
Primary Production
23.5K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.5K


