Related Experiment Video
Updated: Aug 1, 2026
10:42
Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
Published on: November 19, 2016
Summertime haze air pollution and children with asthma
G D Thurston1, M Lippmann, M B Scott
1Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo 10987, USA.
American Journal of Respiratory and Critical Care Medicine
|February 1, 1997
Summary
Summertime air pollution, particularly ozone (O3), significantly worsens asthma symptoms in children. Increased pollution levels correlate with more asthma exacerbations, chest symptoms, and reduced lung function in young asthmatics.
Area of Science:
- Environmental Health
- Pediatric Respiratory Medicine
- Air Quality Science
Background:
- Summertime haze and air pollution are prevalent environmental concerns.
- Asthma affects a significant number of children, with potential for exacerbations during warmer months.
- Understanding the individual-level impact of air pollution on pediatric asthma is crucial for public health.
Purpose of the Study:
- To investigate the association between summertime air pollution and asthma exacerbations in children.
- To identify specific air pollutants linked to adverse respiratory health outcomes in pediatric asthma patients.
- To quantify the impact of air pollution on asthma symptoms, medication use, and lung function.
Main Methods:
- Longitudinal study of children (ages 7-13) with moderate to severe asthma attending a summer camp over three years.
- Daily monitoring of environmental conditions, air pollution levels, medication use, lung function (peak flow), and respiratory symptoms.
- Statistical analysis, including regression, to correlate air pollutant concentrations with health outcomes.
Main Results:
- Significant correlations found between air pollution and acute asthma exacerbations, chest symptoms, and lung function decrements.
- Ozone (O3) was the most consistently associated pollutant; sulfates and hydrogen ions also suggested a role for fine particles.
- Increased ozone levels were linked to a ~40% higher risk of asthma exacerbations and chest symptoms, and increased medication use.
Conclusions:
- Summertime air pollution is a major contributor to respiratory problems in children with asthma.
- Ozone exposure significantly impacts pediatric asthma control, leading to increased symptom severity and reduced lung function.
- Public health strategies should address air quality to mitigate asthma burden in children during summer months.
Related Concept Videos
01:29Asthma-I: Introduction
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...
01:26Asthma-II: Pathophysiology and Classification
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
01:24Asthma-III: Symptoms and Complications
Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
Classification of Asthma
01:30Asthma-IV: Diagnostic and Management
The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
01:28Asthma I: Introduction
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...
01:13Asthma III: Clinical Manifestations
Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...