红矿藏中的相关矿物质及其潜在的健康风险
1Chatfield Technical Consulting Limited, Mississauga, ON, Canada.
Frontiers in public health
|May 22, 2025
概括
青含有石/动石和阿莫石,具有挑战性的历史研究. 先进的TEM分析揭示了商业和标准样本中的污染物,质疑了过去研究的有效性.
科学领域:
- 矿物学和材料科学 矿物学和材料科学
- 环境健康和毒理学
- 分析化学 分析化学
背景情况:
- 青是一种广泛研究的材料,历史研究通常依赖于UICC (国际癌症防治联盟) 标准.
- 之前的分析方法用于检测里中共存的两生物,可能缺乏足够的灵敏度来量化低水平的污染物.
- 除里索外,还有其他石矿物质的存在可能会影响毒理学结果,并复杂化风险评估.
研究的目的:
- 准确量化各种青素样本中青素/青素和阿莫石的存在和度,包括UICC-A和UICC-B标准.
- 评估一种特定的酸溶液和传输电子显微镜 (TEM) 程序的有效性,用于分析色素污染物.
- 评估检测到的污染物对历史生物和毒理学研究的有效性的影响,使用这些里索标准.
主要方法:
- 样品经过连续的盐酸和氧化溶液处理,以分离矿物残留物.
- 使用传输电子显微镜 (TEM) 检查了残留物,用于纤维识别和定量.
- 对长于5μm的纤维和0.5μm至5μm之间的纤维进行了纤维计数,用纤维/克和质量分数 (ppm) 量化特里莫利特/阿克提诺利特.
主要成果:
- 来自大多数商业矿床的晶含有石/动石;UICC-B加拿大晶平均为180ppm (约1.25×10^7纤维/g>5μm).
- 发现UICC-A和UICC-B的色标准都被Amosite污染了.
- 在Balangero矿山里检测到石棉二氧化,其度与其他来源的石/动石相似.
结论:
- 这项研究证实,在广泛使用的UICC青标准中,存在大量的青/青和青污染物.
- 在之前的研究中使用的分析方法声称UICC-B青中没有青/青,缺乏足够的灵敏度.
- 在参考青材料中检测到的两和阿莫污染物的含量,引发了人们对从中获得的历史毒理学数据的可靠性的担忧.
关键词:
在UICC的比赛中,UICC的球员们.作为一个行动类物质 (actinolite),石棉石棉是一种石棉.班加罗伊特人 班加罗伊特人克里索是一种的材料.二氧化二氧化二氧化纤维纤维纤维纤维纤维是一种纤维.石是一种石.更多相关视频
04:53Author Spotlight: Advances in Evaluating Human Lung Epithelial Cells' Response to Metal-Organic Frameworks
Published on: May 26, 2023
837
09:29An Air-liquid Interface Bronchial Epithelial Model for Realistic, Repeated Inhalation Exposure to Airborne Particles for Toxicity Testing
Published on: May 13, 2020
11.3K
相关概念视频
Minerals
221
Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
Major...
Major...
221
Types of Toxins
1.6K
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...
1.6K
Essential Minerals for Bone Health
3.7K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
3.7K
Deleterious Substances in Aggregate
139
Deleterious substances in aggregates can be detrimental to the quality and durability of concrete. These substances include organic impurities like loam, which interfere with cement hydration and are usually present in the sand. These prevent a good bond between aggregate and cement paste. Organic impurities can be detected using the colorimetric test, where the darkness of a solution after agitation indicates the level of organic content.
Another type of impurity is clay and fine material that...
Another type of impurity is clay and fine material that...
139
The Periodic Table and Organismal Elements
173.9K
Overview
173.9K
Skeletal Muscle Relaxants: Adverse Effects
327
Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
Unlike...
327
