澳大利亚河流系统中的水生植物对药物的生物度
Samantha Harriage1, Ahmad Harasheh2, Nick Schultz1
1Future Regions Research Centre, Federation University Australia, Ballarat, Victoria, Australia.
The Science of the total environment
|July 3, 2024
概括
药品在远离废水厂下游的河流中持续存在. 像Phragmites australis和Vallisneria australis这样的水生植物可以吸收这些污染物,可能将它们转移到食物网中.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 水生生态学 水生生态学
背景情况:
- 药品越来越多地被检测到水生环境中,对生态系统构成风险.
- 对于药物持久性和水生植物吸收的了解有限.
研究的目的:
- 为了研究五种药品在河流系统中的长距离持久性.
- 在两个关键的水生植物物种中量化这些药物的生物度.
主要方法:
- 在144公里长的河段收集了地表水和水生植物 (Phragmites australis,Vallisneria australis) 的样本.
- 量化了五种药物的度 (卡巴马泽平,普里米,普拉诺洛尔,特拉马多尔,文拉法辛).
- 对植物组织中检测到的药物计算了生物度因子 (BCF).
主要成果:
- 所有五种药物都在地表水中检测到,特拉马多尔的含量超过500 ng.L-1.1.
- 四种药物持续下游144公里,卡巴马西平显示最小衰减.
- 在两种植物物种中都发现了卡巴马泽平和文拉法辛,随着水度的下降,BCFs增加.
结论:
- 药品在河流系统中表现出显著的长途持久性.
- 水生植物积极生物缩药品,表明潜在的途径进入陆地食物网.
- 需要进一步的研究来评估水生植物吸收药物的生态影响.
关键词:
卡巴马西平是一种碳化合物.新出现的污染物 新出现的污染物弗拉格米特 (Phragmites australis) 是一个在南方的动物.它们是Vallisneria australis.文拉法辛 (Venlafaxine) 是一种药物.在WWTP下流水.更多相关视频
16:02Demonstration of the Sequence Alignment to Predict Across Species Susceptibility Tool for Rapid Assessment of Protein Conservation
Published on: February 10, 2023
2.7K
08:49Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
Published on: May 15, 2017
10.6K
相关概念视频
Drug Concentrations: Measurements
355
Drug concentration is the quantity of a drug present in a biological sample. Measuring drug amounts in biological samples allows the clinician to understand how a drug is absorbed, distributed, metabolized, and excreted. Samples can be obtained through invasive or non-invasive methods. Invasive techniques involve surgical or parenteral interventions to gather blood, cerebrospinal fluid, or tissue biopsy. Conversely, non-invasive approaches provide samples like urine, feces, and saliva.
Plasma...
Plasma...
355
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
Drug Distribution: Tissue Binding
2.6K
Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
For...
For...
2.6K
