A large study of 1.85 million new pediatric asthma cases attributed to nitrogen dioxide (NO2) reported that two-thirds occurred in urban areas. George Washington University conducted the study.
Parvathy Sukumaran 
By Owner
A large study of 1.85 million new pediatric asthma cases attributed to nitrogen dioxide (NO2) reported that two-thirds occurred in urban areas. George Washington University conducted the study.
