相关实验视频
Updated: Jul 8, 2025

09:16
Air-sampled Filter Analysis for Endotoxins and DNA Content
Published on: March 7, 2016
9.7K
北亚得里亚海地区 (克罗地亚) 的空中沙漠尘埃:不同的来源
Ana Alebić-Juretić1, Boris Mifka2, Josipa Kuzmić3
1Environmental Health Department, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia.
The Science of the total environment
|December 16, 2023
概括
在克罗地亚里耶卡的空气中的颗粒被分析,揭示了来自叙利亚沙漠的重要贡献,而不是撒哈拉. 这一发现突出了影响空气质量的细微和超细微气溶的新来源.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 空气质量监测 空气质量监测
背景情况:
- 船舶排放对里耶卡和威尼斯等港口城市的空气质量产生影响.
- 沙漠尘埃是北亚得里亚海地区空气污染的已知原因之一.
研究的目的:
- 估计船舶排放对里耶卡和威尼斯空气质量的影响.
- 为了确定在里耶卡收集的空气中的颗粒物的来源.
主要方法:
- 在里耶卡收集的两个每周空气样本 (S01和S13) 的分析.
- 使用HYSPLIT模型进行逆向轨迹分析.
- 化学物种分析和MERRA-2对沙漠尘埃排放的重新分析.
主要成果:
- 样本S01显示了细微和超细颗粒,二次无机气溶和水溶性有机化合物 (WSOC) 的高贡献.
- 根据HYSPLIT和MERRA-2的分析,S01的来源是叙利亚沙漠,而不是撒哈拉沙漠.
- 样本中含有高水平的和酸盐,这是叙利亚沙漠尘埃的特征.
结论:
- 这项研究是首次确定叙利亚沙漠是北亚得里亚海空气中的颗粒物的来源.
- 这些发现扩大了我们对沙漠尘埃远程运输及其对城市空气质量影响的理解.
相关概念视频
Asthma-I: Introduction
2.6K
Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
2.6K
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
2.8K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
2.8K
Other Pulmonary Disorders
844
Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
844
Chronic Obstructive Pulmonary Disease
1.3K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
1.3K
Global Climate Change
24.4K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.4K
Chronic Obstructive Pulmonary Disease-I: Introduction
2.8K
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
2.8K

