Brief exposure to minuscule amounts of air pollution can trigger acute lower respiratory infection in young children.
This is according to research conducted by Brigham Young University and the University of Utah.
Their findings were published Friday in the American Journal of Respiratory and Critical Care Medicine.
The study involved 146,397 patients with acute lower respiratory infection in Utah between 1999 and 2016.
This is the largest study involving air pollution and children.
The most common acute lower respiratory infection in children is bronchiolitis.
Among those studied, 64 percent were diagnosed with bronchiolitis.