Different standards for air quality depending on whether the sources are located in clean areas or polluted areas.

Question

Quizplus · Accepted Answer

This statement is true. In some areas, there may be more lenient standards for air quality if the air is already polluted beyond certain levels. On the other hand, in areas with relatively clean air, the standards may be more strict to maintain that level of cleanliness.

Different Standards for Air Quality Depending on Whether the Sources