Related Experiment Video
Updated: Feb 11, 2026
14:27
Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data
Published on: June 26, 2013
16.3K
Combining raw and compositional data to determine the spatial patterns of Potentially Toxic Elements in soils
C Boente1, M T D Albuquerque2, A Fernández-Braña1
1INDUROT, Environmental Technology, Biotechnology, and Geochemistry Group, Universidad de Oviedo, Campus de Mieres, 33600 Mieres, Asturias, Spain.
The Science of the Total Environment
|May 6, 2018
Summary
This study maps Potentially Toxic Elements (PTEs) in Langreo, Spain, revealing industrial pollution. The research highlights spatial trends of PTEs, identifying specific elements like lead and mercury concentrated in the city center.
Area of Science:
- Environmental Science
- Geochemistry
- Spatial Analysis
Background:
- Environmental characterization benefits from data dimensionality reduction for clearer insights.
- Mapping contaminant distribution and identifying enriched areas are crucial for understanding spatial patterns.
- Potentially Toxic Elements (PTEs) analysis in soil is vital for assessing environmental contamination.
Purpose of the Study:
- To introduce and apply a novel approach for studying the fate and spatial dissemination trends of 15 Potentially Toxic Elements (PTEs).
- To investigate the variability of PTE proportions and their spatial patterns in Langreo's soil.
- To combine raw and compositional data analysis for a comprehensive understanding of PTEs.
Main Methods:
- Measurement of 15 Potentially Toxic Elements (PTEs) in soil samples from Langreo, Spain.
- Application of Relative Enrichment (RE) concept to study PTE proportions.
- Utilizing Centered Log-ratio (clr) transformation and back-transformation for compositional data analysis.
- Integrating raw and compositional data for spatial characterization of PTEs.
Main Results:
- Spatial patterns of PTE concentrations and relative enrichment were identified.
- The study revealed trends in the spatial dissemination of PTEs.
- The Langreo area shows significant impact from its industrial and mining legacy.
- Lead (Pb) and Mercury (Hg) are highly enriched in the city center; Arsenic (As) shows enrichment towards the northwest.
Conclusions:
- The industrial and mining legacy profoundly affects the Langreo area.
- Spatial analysis of PTEs, considering compositional data, is effective in identifying pollution sources and trends.
- The novel approach provides valuable insights into PTE fate and dissemination.
More Related Videos
08:09Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management
Published on: September 12, 2017
12.3K
05:52Resource Recycling of Red Soil to Synthesize Fe2O3/FAU-type Zeolite Composite Material for Heavy Metal Removal
Published on: June 2, 2022
3.4K
Related Concept Videos
02:23The Soil Ecosystem
25.0K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
25.0K
03:35Classifying Matter by Composition
91.0K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
91.0K
02:35Key Elements for Plant Nutrition
24.4K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.4K
01:27Elements and Compounds
105.3K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
105.3K
02:54Classification of Elements and Compounds
73.4K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
73.4K
04:00Periodic Classification of the Elements
59.6K
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
59.6K