` ` pollution - resistant technology '' can oxidize the smog - forming nitrogen oxides present in the air . The technology is used in a number of industries for the creation of eco - friendly products . but it wo n't happen overnight , '' he said . Experts warn air pollution poses a serious threat to the health of city residents . Los Angeles has the highest levels of ozone pollution in the United States .
` ` pollution - resistant technology '' can oxidize the smog - forming nitrogen oxides present in the air . The technology is used in a number of industries for the creation of eco - friendly products . Experts warn air pollution poses a serious threat to the health of city residents . Los Angeles has the highest levels of ozone pollution in the United States .