https://www.eurekalert.org/pub_releases/2020-08/b-apl081720.php
News Release 19-Aug-2020
BMJ
Children exposed to higher levels of fine particles in the air (known as PM2.5) are more likely to develop asthma and persistent wheezing than children who are not exposed, finds a study published by The BMJ today.
Other risk factors associated with a higher risk of developing asthma and persistent wheezing were having parents with asthma, having a mother who smoked during pregnancy, or having parents with low education and low income.
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PM2.5 can come from various sources, including power plants, motor vehicles and domestic heating. The particles (about 3% or less of the diameter of a human hair) can penetrate deep into the lungs and some may even enter the circulatory system.
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