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A new study found that living near busy roads increases the risk of asthma among children.
Researchers from Beth Israel Deaconess Medical Center and Harvard T.H. Chan School of Public Health analyzed the data of 1,522 children born from 1999 to 2002 in Boston, Massachusetts /ˌmæs.əˈtʃuː.sɪts / . They analyzed information like medical and residential history through the children’s mothers who previously participated in a study called Project Viva. This study aimed to learn about the effects of behavioral and environmental factors on children’s health.
Using mapping technologies, the researchers calculated the distance between the children’s houses and the nearest busy road, as well as pollution levels in their area of residence.
Results revealed that most children are exposed to soot or black carbon particles that enter the lungs when inhaled. As a result, children who live less than 100 meters away from a busy road are more prone to asthma than those who live more than 400 meters away. According to the study’s co-author Mary Rice, children have smaller airways, which make them more at risk of experiencing asthma symptoms like breathing difficulties.
Apart from asthma, maladies like heart diseases and dementia—a condition associated with memory loss—have also been linked to living adjacent to busy roads. Previous studies found that high blood pressure and peripheral artery disease, or the tightening of arteries in body parts like legs and the stomach, are common among those living near busy roads. On the other hand, factors such as traffic and noise were found to contribute to the increasing rates of dementia.