工业废水和N-胺在岩水系:分布和生态影响的研究
Xiaoyu Yan1, Huanfang Huang2, Wenwen Chen1
1Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China.
Environmental geochemistry and health
|June 17, 2024
概括
电废水严重污染了岩水的N-胺胺 (NA). 这些污染物迅速传播,对水生生物和人类健康构成风险,特别是在地下水中.
科学领域:
- 环境化学环境化学
- 水文地质学 水文地质学
- 生态毒理学 生态毒理学
背景情况:
- 电废水排放将高度的N-胺 (NAs) 引入水生环境.
- 由于其脆弱的性质和不清楚的转变途径,地生态系统对NA特别脆弱.
- 了解NA在石水系统中的命运对于风险评估至关重要.
研究的目的:
- 调查九种N-胺的存在,运输和生态风险在受电废水影响的地地表水和地下水中.
- 确定水生环境中NAs的主要来源和贡献.
- 评估与特定的NA相关的毒性和致癌风险.
主要方法:
- 在电废水排放区的上游和下游从河流和地下水采样.
- 对9种N-尼托胺的化学分析.
- 统计分析包括主要组件分析和多重线性回归.
- 应用物种灵敏度分布模型用于毒性评估.
主要成果:
- 电废水中的N-尼托拉胺度 (1800 ng/L) 明显高于河水 (130 ng/L) 和地下水 (70 ng/L).
- 电废水是主要的来源,为河水贡献89%,为地下水贡献53%的NAs.
- N-二甲胺对水生生物有很高的毒性,在地下水较低的水域,致癌风险增加.
结论:
- 电废水是岩水环境中N-胺的主要来源.
- N-胺素在地地下水中迅速扩散和积累,造成显著的生态和健康风险.
- 这项研究强调了考虑NA的特殊性质的重要性,以便在脆弱的地系统中准确地评估毒性和风险.
更多相关视频
08:05Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O
Published on: October 7, 2020
6.1K
10:11The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations
Published on: August 3, 2016
9.8K
相关概念视频
The Nitrogen Cycle
51.9K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
51.9K
Primary Production
23.6K
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.
23.6K
Comparative Excretory Systems
19.3K
Animals have evolved different strategies for excretion, the removal of waste from the body. Most waste must be dissolved in water to be excreted, so an animal’s excretory strategy directly affects its water balance.
19.3K
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
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
Overview of Nitrogen Metabolism
7.9K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.9K
