(Reuters Health) - Doctors have long predicted that less air pollution will produce healthier lungs. Now a first-of-its-kind study of 2,120 children in southern California has documented dramatically better lung function growth as air quality has improved.
Over a 13-year period, the proportion of children with poor lung capacity and lung health fell by half as levels of nitrogen dioxide and particulate matter dropped. The gains were seen both in youngsters who had asthma and in those who did not.
Also read: Poll: Trump job approval hits new low