"Kids Face 'Cooking Pot for Asthma' in California'S Central Valley" [1]
"MODESTO, Calif. – The students filing into Bret Harte Elementary School every morning barely notice the flags fluttering by the school's main entrance. There is the American flag, the California state flag and the color-coded asthma flag – green when the air is clear, red when it is a respiratory nightmare, as it so often is here."