In continuation to the previous statement air quality has been gradually improving in the United States. The air quality in many cities has improved markedly thanks to improved technology in fuel-burning mechanisms, although problem areas remain, the American Lung Association announced Wednesday (Schouten 1). Lyndsay Alexander reports, "Retrofitting and retiring the old, dirty engines in construction equipment and school buses is really helping air pollution. By cleaning dirty coal burning power plants and vehicle engines, the air has become much cleaner.’’ In Ohio, for example, particle pollution readings improved in Cleveland, making it among 16 cities that …show more content…
The American Lung Association lauded the federal Clean Air Act, currently on hold by the Supreme Court, but urged states to individually evaluate their air quality to determine paths to improvement. As scientific information has become more available, cities have been able to make specific plans because they know their targets for clean air (Schouten