In the real world, dynamic changes in air pollutants and meteorological factors coexist
simultaneously. Studies identifying the effects of individual pollutants on acute exacerbation …

Background: It is well established that short-term exposure to ambient air pollutants can
exacerbate asthma, the role of early life or long-term exposure is less clear. We assessed …

Objective: In recent years, air pollutant concentrations in Japan have decreased slightly;
however, there are growing concerns about the influences of transnational air pollution on …

Background: Few studies have evaluated the impact of air pollution levels on the severity of
exacerbations. Thus, we compared the relative risks posed by air pollutant levels on …

INTRODUCTION: The incidence of asthma exacerbation has been increasing in many
countries. Environmental factors may play an important role in this trend. We aimed to …

It has been revealed by many studies that air pollution is one of the important inducements
of asthma exacerbations. In addition, meteorological conditions such as high atmospheric …

ABSTRACTBackground: Alterations in allergic susceptibility are a central feature of several
chronic respiratory diseases. This study was conducted to determine whether variation in …

Asthma is a chronic respiratory disease characterized by variable airflow obstruction,
bronchial hyperresponsiveness, and airway inflammation. Evidence suggests that air …

Abstract Effects of air pollution on asthma vary in different study areas, and long-term time
series research on the effects of air pollution on asthma outpatients and emergency hospital …

Background Although the different age groups had differences in sensitivity of asthma
exacerbations (AEs) to environmental factors, no comprehensive study has examined the …