Traffic and power generation are the main sources of urban air pollution. The idea that
outdoor air pollution can cause exacerbations of pre-existing asthma is supported by an …

Background Air pollution constitutes a significant stimulus of asthma exacerbations;
however, the impacts of exposure to major air pollutants on asthma-related hospital …

Rationale: Short-term exposure to air pollution has been associated with asthma
exacerbation and increased healthcare use caused by asthma, but its effect on asthma …

Ozone is associated with adverse health; however, less is known about vulnerable/sensitive
populations, which we refer to as sensitive populations. We systematically reviewed …

Background The association between short-term exposure to air pollution and morbidity of
COPD and asthma has been observed in many studies. However, there is a lack of …

Background Numerous studies have estimated adverse effects of short-term exposure to
ambient air pollution on public health. Few have focused on sex-differences, and results …

Data on fine particulate matter (PM 2.5) in China were first announced in 2013. The primary
objective of this study was to evaluate the acute effects of PM 2.5 on asthma morbidity in …

Although the impact of temperature on mortality is well documented, relatively fewer studies
have evaluated the associations of temperature with morbidity outcomes such as hospital …

Background Air pollution can have adverse health effects on asthma sufferers, but the effects
vary with geographic, environmental and population characteristics. There has been no long …

Previous studies have found strong associations between asthma morbidity and major
ambient air pollutants. Relatively little research has been conducted to assess whether age …