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Related Concept Videos

Asthma-I: Introduction01:29

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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...
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Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
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Factors Affecting Pulmonary Ventilation01:19

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Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

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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...
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

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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:
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Chronic Obstructive Pulmonary Disease I: Introduction01:23

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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...
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Updated: May 5, 2026

Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters
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Air pollution associated with airports.

E Tsani-Bazaca1, A E McIntyre, J N Lester

  • 1Public Health Engineering Laboratory, Civil Engineering Department, Imperial College, SW7 2BU, London, UK.

Environmental Monitoring and Assessment
|November 22, 2013
PubMed
Summary
This summary is machine-generated.

Air quality near Gatwick Airport was studied for pollutants like carbon monoxide and nitrogen oxides. Results show airport emissions are not a major contributor to overall ground-level pollution in the area.

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Area of Science:

  • Environmental Science
  • Atmospheric Chemistry
  • Public Health

Background:

  • Airport operations can impact local air quality.
  • Understanding pollutant levels near airports is crucial for environmental and health assessments.
  • Previous studies have indicated potential localized air pollution from aviation activities.

Purpose of the Study:

  • To assess ambient air quality around Gatwick Airport.
  • To measure concentrations of key pollutants including carbon monoxide, hydrocarbons, oxides of nitrogen, smoke, and particulate lead.
  • To compare measured pollutant levels with established air quality guidelines and data from other UK monitoring sites.

Main Methods:

  • Field monitoring of air pollutants at seven distinct locations surrounding Gatwick Airport.
  • Analysis of ambient air concentrations for carbon monoxide, total and non-methane hydrocarbons, oxides of nitrogen, smoke, and airborne particulate lead.
  • Comparative analysis of collected data against national air quality guidelines and data from other UK monitoring stations.

Main Results:

  • Measured ambient air concentrations for pollutants including carbon monoxide, hydrocarbons, oxides of nitrogen, smoke, and particulate lead were recorded.
  • Data was compared with available air quality guidelines and results from other UK monitoring sites.
  • Pollutant levels were evaluated in the context of Gatwick Airport's proximity.

Conclusions:

  • The study concluded that Gatwick Airport is not a significantly dominant source of average ground-level pollutant concentrations compared to other regional sources.
  • Local air quality near the airport was found to be influenced by multiple factors, with airport emissions not being disproportionately high.
  • Findings suggest a need for comprehensive air quality management considering all local emission sources.