The neighborhood street festival in the german city of cologne for a day cause a band pedestrians and bicyclists are free to use the streets normally traffic clogs these roads and pollutes the air levels of find particulate matter and nitrogen oxides are high in town town cologne. Pediatrician christian during is trying to raise awareness of the problem. Imo your kids have a cigarette off of. The cigarette made of chewing gum symbolizes the invisible danger of particulate matter and nitrogen oxides it represents the 2 cigarettes with toxins during says cologne residents inhaled every day. He sees a lot of young patients with respiratory problems in his practice. Public in the us parker says for most who fish where there are pediatric practice is located nearby an area with heavy traffic. And weve observed an increase in the problems children have in the months when we get temperature inversions of this stuff and then the polluted air is trapped below and theres an increase in respirato