Final answer:
The false statement about the Clean Air Act is that smog is one of the air pollutants listed under the original Clean Air Act in 1970; smog itself is not a listed pollutant but rather a mixture of various pollutants.
Step-by-step explanation:
The false statement about the Clean Air Act is that smog is one of the air pollutants listed under the original Clean Air Act in 1970. Smog is a type of air pollution but not a discrete pollutant listed like the criteria pollutants.Under the Clean Air Act, the Environmental Protection Agency (EPA) is indeed responsible for setting limits on both stationary and mobile sources of air pollution. These include sources such as factories and vehicles, respectively. Additionally, the act obligates the EPA to list dangerous pollutants, which are substances proven to have harmful effects on both the environment and public health.
The establishment of National Ambient Air Quality Standards (NAAQS) is for six criteria pollutants: carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter (including smog components), and sulfur dioxide. Lead was added to this list as a result of the amendments to the Clean Air Act, but not until 1976, rather than the specified year of 1987 in the given statement.It's essential to understand that while smog is commonly associated with air pollution in urban areas and is composed of various pollutants (including some that are on the NAAQS list), it itself was not one of the specific pollutants listed when the act was passed in 1970.