Related Experiment Video
Updated: Jun 9, 2026
05:18
Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters
Published on: July 12, 2024
Global mortality attributable to aircraft cruise emissions
Steven R H Barrett1, Rex E Britter, Ian A Waitz
1Department of Engineering, University of Cambridge, Trumping Street CB2 1PZ, UK. sbarrett@mit.edu
Environmental Science & Technology
|September 3, 2010
Summary
Aircraft cruise emissions cause approximately 8000 premature deaths annually, significantly impacting global human health and air quality. This highlights the critical need to address aviation
Area of Science:
- Atmospheric chemistry and air quality modeling
- Environmental health impacts of aviation
- Global public health and pollution studies
Background:
- Previous studies on aircraft emissions primarily focused on landing and takeoff impacts.
- Aircraft emissions contribute to air quality degradation and human health issues.
- The full extent of aviation's air quality impact, especially from cruise emissions, remains under-evaluated.
Purpose of the Study:
- To quantify the global premature mortalities attributable to aircraft cruise emissions.
- To assess the hemispheric-scale impact of aircraft cruise emissions on human health.
- To inform policy and operational strategies for mitigating aviation's air quality effects.
Main Methods:
- Utilized atmospheric modeling to analyze the impact of aircraft cruise emissions on air quality.
- Estimated premature mortalities by linking air quality changes to population exposure.
- Investigated the formation and transport of secondary aerosols (sulfuric acid-nitric acid-ammonia) from aviation emissions.
Main Results:
- Aircraft cruise emissions are linked to an estimated 8000 premature mortalities annually, representing about 80% of aviation's total air quality impact.
- Secondary aerosols formed from cruise emissions, particularly H2SO4-HNO3-NH3, dominate mortality impacts.
- Transboundary air pollution from cruise emissions significantly affects regions like China and India, contributing to an estimated 3500 premature deaths annually in these areas.
Conclusions:
- Aircraft cruise emissions have a substantial global impact on human health via air quality degradation.
- The formation and transport of secondary aerosols, coupled with meteorological factors and population density, drive significant mortality.
- Policy and technological strategies must explicitly consider aircraft cruise emissions to effectively mitigate air transportation's health impacts.
Related Concept Videos
01:27Microbes and Climate Change
Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
01:20COPD: Pathogenesis and Clinical Features
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
01:50Global Climate Change
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.
01:23Chronic Obstructive Pulmonary Disease I: Introduction
Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
01:17Other Pulmonary Disorders
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.