在水-土壤-大米系统中积模式:对耐受性机制和相关健康风险的研究
Muhammad Saeed1, Muhammad Anas2, Umar Masood Quraishi2
1Environmental Biology and Ecotoxicology Laboratory, Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
The Science of the total environment
|October 22, 2023
概括
巴基斯坦的污染.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 毒理学 毒理学 毒理学
背景情况:
- 巴基斯坦大米田中的 (As) 污染是一个重大挑战,对耐受性和促成因素的研究有限.
- 了解影响水-土壤-大米系统中含量的物理化学因素对于管理污染至关重要.
- 米植物拥有对毒性的防御机制,影响生长和产量.
研究的目的:
- 调查影响巴基斯坦水土大米系统中含量的物理化学因素.
- 为了探索大米防御机制对毒性的毒性.
- 评估与大米中积累相关的健康风险.
主要方法:
- 从不同污染水平 (<10,11-25,26-100,>100μg/L) 的地区采集了大米,灌和土壤样本.
- 测量了氧化应激标志物 (MDA,H2O2) 和抗氧化酶 (SOD,CAT,POD,APX).
- 使用杜罗夫图表进行水类分类,FTIR用于有机化合物识别,HG-AAS用于总的测量.
主要成果:
- 大多数灌水样本是Ca-Mg-Cl类型.
- 在高地区的土壤中,FTIR分析揭示了有机化合物 (OH,CC,CI,CBr).
- 在高污染地区观察到更高的积和转移,这显著影响了大米产量和根系参数.
- 氧化应激和抗氧化活性随着的度增加,除了APX.
结论:
- 污染对大米种植产生重大影响,并通过谷物消费对健康构成风险.
- 水土系统中的高含量会导致氧化应激增加和作物产量减少.
- 严格的法规和政策对于减轻污染和保护受影响地区的公共卫生至关重要.
更多相关视频
08:21Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
15.1K
10:05Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation
Published on: July 4, 2014
14.3K
相关概念视频
01:36Types 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
01:26Toxic Reactions: Overview
991
When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
991
01:27The Periodic Table and Organismal Elements
17.1K
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...
Periodic Table Provides Information...
17.1K
02:02Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K