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During April 30–August 4, 2023, smoke originating from wildfires in Canada affected most of the contiguous United States. CDC used National Syndromic Surveillance Program data to assess numbers and percentages of asthma-associated emergency department (ED) visits on days wi...

Background: While benefits of greenness to health have been reported, findings specific to child respiratory health are inconsistent. Methods: We utilized a prospective birth cohort followed from birth to age 7 years (n = 617). Residential surrounding greenness was quan...

Background:Atopic dermatitis (AD) is an inflammatory skin disease caused by allergen exposures and estimated to affect ∼20% of children. Children in urban areas have a higher prevalence of AD compared with those living outside of urban areas. AD is believed to lead to asthma ...

RATIONALE  Air pollution exposure in pregnancy may affect fetal growth, and fetal growth restriction (FGR) is associ­ated with lung im­pairment that can persist into adulthood. Associated diseases include asthma, pulmonary hypertension (PH), and chronic obstructive p...

Ozone (O3) and nitrogen dioxide (NO2) are common air pollutants and highly reactive gases that can induce airway irritation and inflammation. O3 exposure is associated with COPD, type II diabetes, cardiovascular disease, NO2 exposure is associated with asthma and COPD exacerbatio...

Background and Purpose: Adrenergic receptors (AR) are the most extensive therapeutically manipulated drug receptors in the treatment of respiratory diseases, such as asthma and chronic obstructive pulmonary disease. The airways are densely innervated by AR, which are cellular rec...

Emerging complex issues present opportunities for epidemiologists to work collaboratively with scientists from other disciplines. Here, we discuss interdisciplinary methods to study environmental and health impacts of the wood pellet industry. Since 2016, the wood pellet industry...

This presentation provides a broad overview of the process used to develop the 2021 WHO Air Quality Guidelines, with a specific focus on the guideline for NO2 as well as the interim targets set by WHO.

Efforts to characterize cumulative impacts have been substantial, but the time has come to explore the next generation of cumulative impact assessments and applications, approaches designed to remedy the past, heal the present, and plan for the future – approaches designed ...

Background: Particulate matter smaller than 2.5 micrometers (PM2.5) is known to cause heart and lung diseases including asthma. Poor environmental quality and rural locations have been shown to be associated with eosinophilic esophagitis (EoE), but the reasons why are unknown, as...

Background Mold sensitization and exposure are associated with asthma severity, but the specific species that contribute to difficult-to-control (DTC) asthma are unknown. Objective We sought to determine the association between overall and specific mold levels in the homes...

Air pollution has been associated with poor health outcomes and continues to be a risk factor for respiratory health in children. While higher particulate matter (PM) levels are associated with increased frequency of symptoms, lower lung function, and increase airway inflammation...

Background Despite improvements in asthma symptom management and asthma morbidity, the prevalence of asthma in the United States remains high, especially in under-resourced communities. Objective Our goal was to determine whether housing renovations affect prevalence of asthma ...

Increased precipitation due to climate change poses significant challenges in urbanized tropical coastal systems. Our study system, the San Juan Bay Estuary (SJBE), located in northeast Puerto Rico, is no exception. This ecosystem includes five lagoons interconnected by channels,...

The objective of this pilot study is to evaluate whether electronic health record (EHR) systems can be used to study respiratory effects associated with exposure to aerosolized cyanobacterial toxin exposure. We aimed to evaluate if whether we can detect an increase in healthcare ...

The presentation describes the public health impact of particulate matter (PM 2.5) exposures, the strategies to minimize risk, and knowledge gaps that when filled, will help health officials better protect cardiovascular health. The presentation highlights resources available for...

Ambient air pollution exposure in pregnancy may affect fetal growth restriction (FGR). In turn, FGR is associ­ated with im­paired lung function in children that can persist into adulthood. Lung diseases linked to FGR include asthma, pulmonary hypertension, and chronic obs...

Wood smoke particulate (WSP) exposure causes respiratory disease including asthma, COPD, infections, and cancer.  The number of individuals exposed to WSP is increasing due to climate change and increased development at wildland urban interfaces, yet our knowledge of the cel...

Objective: The School Inner-City Asthma Intervention Study 2 (SICAS 2) tested interventions to reduce exposures in classrooms of students with asthma. The objective of this post-hoc analysis was limited to evaluating the effect of high-efficiency particulate (HEPA)...

In many cities throughout the world, emissions from transportation activities contribute large amounts of air pollution, including criteria and toxic pollutants that negatively impact human health and the environment.  Transportation facilities are ubiquitous throughout the ...

The Sun Valley Homes public housing in Denver, Colorado (CO) will be replaced because of its deteriorated condition. Our goal was to document the mold contamination and particulate matter (PM2.5) concentrations in Sun Valley homes and the circulatory and respiratory health of Sun...

Optimal use of Hierarchical Bayesian Model (HBM)-assembled aerosol optical depth (AOD)-PM2.5 fused surfaces in epidemiologic studies requires homogeneous temporal and spatial fused surfaces. No analytical method is available to evaluate spatial heterogeneity. The temporal ca...

Wildland fires are diminishing air quality on a seasonal and regional basis, raising concerns about respiratory health risks to the public and occupational groups. This American Thoracic Society (ATS) workshop was convened to meet the growing health threat of wildland fire smoke....

Despite decades of investigation, test methods to identify respiratory sensitizers remain an unmet regulatory need. In order to support the evaluation of New Approach Methodologies in development, we sought to establish a reference set of low molecular weight respiratory sensitiz...

Children’s health can be significantly impacted by direct exposure to different chemical hazards in the physical environment. Previous research has linked biological factors to an increase in vulnerability, but there are other factors that may affect exposures and health ou...