On the east side of Houston, the white plumes of the Texas oil and chemical refineries are a constant backdrop for residents of the Manchester neighborhood.
Late at night or early in the morning when plants burn off excess gases, the flames light up the whole sky in the neighborhood.
She checks her blood pressure and listens to her heart beat regularly.
"In the air I feel it's this we're all breathing. This is why I want to leave from here," Nieto said of the Manchester area. "I want to go somewhere that is far from the refineries so that I can repair my life, repair my health and live better."
PHOTO EDITING GABRIELLE FONSECA JOHNSON; TEXT EDITING Lisa Shumaker; LAYOUT JULIA DALRYMPLE