Related Experiment Video
Updated: Jun 27, 2025
14:48
Visualizing Lung Cellular Adaptations during Combined Ozone and LPS Induced Murine Acute Lung Injury
Published on: March 21, 2021
5.1K
Exposure to Concurrent Heatwaves and Ozone Pollution and Associations with Mortality Risk: A Nationwide Study in
Hang Du1,2, Meilin Yan3, Xin Liu4
1China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health (NIEH), Chinese Center for Disease Control and Prevention (China CDC), Beijing, China.
Environmental Health Perspectives
|April 25, 2024
Summary
Concurrent heatwaves and ozone pollution significantly increase mortality risk in China. Excess deaths from these combined events rose sharply between 2017-2020, highlighting the need for integrated early warning systems.
Area of Science:
- Environmental Health
- Climate Change Epidemiology
- Public Health Policy
Background:
- Climate change is increasing the frequency of concurrent extreme weather events.
- Understanding the mortality burden of combined heatwaves and ozone pollution is crucial for adaptation.
- Concurrent events pose a significant public health challenge requiring targeted strategies.
Purpose of the Study:
- To estimate the mortality risk and excess deaths associated with concurrent heatwaves and ozone pollution in China.
- To analyze the trends and contributing factors of mortality from these combined extreme events.
- To provide evidence for developing early warning systems for concurrent environmental hazards.
Main Methods:
- Collected daily mortality, meteorological, and air pollution data across 250 Chinese counties (2013-2018).
- Defined and categorized events as heatwave-only, ozone pollution-only, or concurrent.
- Utilized generalized linear models and meta-analysis to assess mortality risks and excess deaths.
Main Results:
- Concurrent heatwaves and ozone pollution exhibited higher all-cause mortality risk than single events.
- Circulatory and respiratory mortality risks were elevated by concurrent events.
- Annual excess deaths from concurrent events increased 5.7-fold from 2013-2016 to 2017-2020.
Conclusions:
- Concurrent heatwaves and ozone pollution pose a substantial and growing mortality risk in China.
- Findings support the development of integrated early warning systems for combined extreme events.
- Urgent public health interventions are needed to mitigate the health impacts of climate-related concurrent hazards.
Related Concept Videos
01:27Psychoneuroimmunology: Cardiovascular Disease
30
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...
30
01:36Types of Toxins
1.7K
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...
1.7K
01:50Global Climate Change
24.3K
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.
24.3K
02:59Biological Effects of Radiation
15.4K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
15.4K
01:29Asthma-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
01:25Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
2.7K
Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
2.7K