In a recent study published in the European Respiratory Journal , researchers investigated how urban vegetation and exposure to pollen are linked to the incidence of childhood asthma. Their results indicate that these factors interact complexly. Tree canopy areas appear to protect children against asthma, but exposure to pollen can negate these benefits.
Study: Early life exposure to pollens and increased risks of childhood asthma: a prospective cohort study in Ontario children . Image Credit: Misha Arkhanhel/Shutterstock.com Asthma, characterized by coughing, shortness of breath, and wheezing, is among children's most common chronic diseases.
Various phenotypes identified by public health researchers in the pediatric population include current wheeze/asthma, early transient wheeze, and moderate to mild asthma. Research has indicated multiple factors contributing to childhood asthma, such as lifestyle behaviors, paternal and maternal factors, genetics, and environmental exposures. An emerging area of interest is the potential role of urban vegetation exposure in preventing childhood asthma.
Previous studies have suggested that green areas might reduce harmful environmental exposures like air pollution and noise and promote outdoor activities. They may also facilitate exposure to diverse microbiota, thus positively affecting respiratory health. However, urban vegetation may also expose children to aeroallergens like airborne pollen, potentially increasing asthma risk.
Exposure.
