微量元素的存在及其对人类健康的影响 废物倾倒场附近的微量元素及其对人类健康的影响
Richard P Bature1, Peter S Hooda2, David Kidd1
1Faculty of Engineering, Computing and the Environment, Kingston University, London, UK.
Environmental geochemistry and health
|January 11, 2026
概括
尼日利亚阿布贾的废物活动造成的土壤污染显示了高水平的微量元素,如 (Cd) 和 (Pb). 这些因素对居民和工人造成重大非癌症和癌症健康风险,需要紧急的环境监管.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 公共卫生 公共卫生
背景情况:
- 在尼日利亚阿布贾的城市地区,非正式的废物回收,拆卸和焚烧活动很普遍.
- 这些活动可能导致危险的微量元素在周围土壤中积累.
- 与土壤污染相关的潜在人类健康风险越来越令人担忧.
研究的目的:
- 调查阿布贾垃圾处理场土壤中微量元素 (Zn,Cd,Cu,Ni,Pb,Cr) 的污染水平.
- 评估这些元素对人类健康的潜在风险 (非致癌和致癌).
- 提供数据,以告知环境法规和废物管理实践.
主要方法:
- 从三个垃圾场 (Apo Mechanic Village,Gudu Market,Goza市政垃圾场) 和他们的控制场所收集了56个土壤样本.
- 对土壤样本进行 (Zn), (Cd),铜 (Cu), (Ni), (Pb) 和 (Cr) 度分析.
- 污染负荷指数 (PLI) 和人类健康风险评估 (HHA) 的计算,用于通过摄入和皮肤接触产生的非致癌和致癌效应.
主要成果:
- 与对照地点相比,在研究地点发现微量元素的度显著更高 (P <0.05).
- 平均PLI从5.80到37.09不等,表明污染水平很高,其中Cd和Pb是主要的贡献者.
- 人类健康风险评估确定了Pb (成人/儿童,摄入/皮肤) 和Cd/Ni (儿童,摄入) 的潜在非致癌风险. 还发现Cr (成人/儿童,所有部位) 和Cd/Pb (儿童) 的极高致癌风险.
结论:
- 废物回收,拆卸和倾倒活动是研究地区微量元素污染土壤的主要来源.
- 已识别的微量元素,特别是Pb,Cd和Cr,对现场工人和附近居民构成重大非癌症和癌症健康风险.
- 紧急执行环境法规和监测废物管理实践对于减轻这些健康风险至关重要.
相关概念视频
The Periodic Table and Organismal Elements
22.1K
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...
22.1K
The Periodic Table and Organismal Elements
199.4K
Overview
199.4K
Types of Toxins
3.1K
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...
3.1K
Voltammetry: Stripping Methods
800
Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
800
Toxic Reactions: Overview
1.8K
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,...
1.8K


