微塑料和纳米塑料在农业地下水系统中的来源,动态和风险
Thais G Carpanez1, Livia Maria C Castro1, Carolina R Dos Santos1
1Federal University of Minas Gerais, Department of Sanitary and Environmental Engineering, 6627, Antônio Carlos Avenue, Campus Pampulha, 31270-010 Belo Horizonte, MG, Brazil.
Anais da Academia Brasileira de Ciencias
|September 10, 2025
概括
农业活动是地下水中微型和纳米塑料 (MNP) 的主要来源. 这些塑料颗粒可以运输有毒物质,突出了地下水监测和风险评估的必要性.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 毒理学 毒理学 毒理学
背景情况:
- 微塑料和纳米塑料 (MNP) 是新出现的污染物,对环境和健康造成了重大关注.
- 由MNP污染的地表水污染已被充分记录,但地下水MNP的存在和行为尚未得到充分研究.
- 地下水是全球关键的水源,因此对MNP进行评估至关重要.
研究的目的:
- 审查地下水中MNP的来源,行为和影响.
- 确定农业活动是MNP的主要来源.
- 检查MNP与其他地下水污染物的相互作用.
主要方法:
- 对地下水中MNP现有研究的文献综述.
- 影响MNP分布 (水文地质,环境) 的因素分析.
- 检查MNP与农业污染物的协同作用和对抗作用.
主要成果:
- 农业实践 (塑料,容器,温室) 是MNP的重要来源.
- 纳米塑料在地下水中更为普遍,这是由于其流动性和吸收能力.
- 许多国家级电站有助于疏水性有机污染物和微量金属的运输.
- 观察到MNP与酸盐,除草剂,农药和盐的相互作用.
结论:
- 尽管度较低,但季节性变化和颗粒老化需要长期监测地下水.
- 对地下水MNP污染的具体风险评估至关重要.
- 需要进一步的研究,以解决在地下水系统中MNP的独特挑战,以保护环境.
相关概念视频
Microorganisms in Agriculture and Food industry
1.4K
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...
1.4K
Environmental Applications of Microorganisms
995
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...
995
Bioremediation
22.1K
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.
22.1K
Types of Toxins
3.2K
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...
3.2K


