相关实验视频

Updated: May 9, 2025

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Published on: May 18, 2019

评估西班牙重要鸟类和生物多样性区域的沉积物污染状况

Maria Dulsat-Masvidal¹, Carlos Ciudad², Pere Colomer-Vidal¹

¹Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Spain.

Environmental research

|April 30, 2025

概括

西班牙重要鸟类和生物多样性区域 (IBA) 的河流沉积物含有遗留和新兴的有机污染物. 多环芳 (PAH),DDT和多双 (PCB) 是最常见的,对水生生态系统构成风险.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
保护生物学保护生物学

背景情况:

河流沉积物是重要的水生息地和食物来源,但也会积累人为污染物.
了解沉积物中的污染物存在和风险对于生态系统健康和生物多样性保护至关重要.

研究的目的:

评估来自西班牙140个重要鸟类和生物多样性区域 (IBA) 沉积物中的52种遗留和新兴有机污染物的存在和生态风险.
确定影响这些敏感水生环境的主要人为压力.
为息地和物种保护建立沉积物质量基准.

主要方法:

现场观测记录了景观压力 (WWTP,垃圾填埋场,农业,城市地区,废物).
沉积物样本使用气体染色学与双重质谱学 (GC-MS/MS) 结合分析.
污染物度与沉积物质量标准和预测无影响度 (PNEC) 相比较.

主要成果:

无处不在的污染物包括多环芳 (PAH),DDT和多二 (PCB).
塑化剂和有机酸 (OPEs) 显示出与塑料废物相关的最高度.
确定和绘制了风险化合物和污染热点,一些地区超过了安全门.

结论:

西班牙IBA的沉积物污染对水生生态系统和生物多样性构成重大风险.
特定的污染物如PAH,DDT,PCB,塑化剂和OPE需要有针对性的管理.
持续的沉积物监测对于有效保护这些关键息地和物种至关重要.

关键词:

重要鸟类和生物多样性地区监控监控监控监控持久性有机污染物持久性有机污染物沉积物沉积物是一种沉积物.

更多相关视频

Ecotoxicological Methodologies to Evaluate Biomarkers at Different Scales in Neotropical Anurans

Ecotoxicological Methodologies to Evaluate Biomarkers at Different Scales in Neotropical Anurans

Published on: April 28, 2023

Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology

Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology

Published on: January 7, 2019

相关概念视频

Conservation of Declining Populations

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.

What is Conservation Biology?

What is Conservation Biology?

Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.

Habitat Fragmentation

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...