as kimberlee cole knows only too well. pollution is, i would say the biggest trigger, really, to making my lungs worse. kim has a lung condition called bronchiectasis which leads to a build—up of mucus. it makes my lungs bleed. sometimes it can be so bad, the air pollution cough, the coughing will make me physically sick. air pollution is dangerous for us all, but older people and those with lung disease are particularly vulnerable. one of the main culprits are the tiny particulates in vehicle exhaust gases and other pollutants. researchers collect the particles, which are so small they can lodge in the lungs and even pass into the blood, damaging veins and other organs. you can see that the lungs are very black. most of the lung tissue has been destroyed. lung scans show the damage air pollution