By Joel Schwartz
Air pollution has been declining for decades across the United States, yet most Americans still believe air pollution is a growing problem and a serious threat to their health. The reason: Most information on air pollution from environmentalists, regulators and journalists – the public’s main sources for information on the environment – is false. Air quality in America’s cities is better than ever.
Between 1980 and 2005:
● Fine particulate matter (PM2.5) declined 40 percent.
● Peak 8-hour ozone (O3) levels declined 20 percent, and days per year exceeding the 8-hour ozone standard fell 79 percent.
● Nitrogen dioxide (NO2) levels decreased 37 percent, sulfur dioxide (SO2) dropped 63 percent and carbon monoxide (CO) concentrations were reduced…