Contamination reduces children's atenttion

A study of ISGlobal (Instituto de Salud Global de Barcelona) discovered that nitrogen emission can affect to children's attention in a short period of time.
They mada a study in more then 300 classes of some schools of Barcelona and another study in schools of other comunities with less pollution.
And the result were those. The pollution affect more and  more each day to children's mind and health, so we must take awareness and try to reduce pollution before this problem become bigger.