Questions: The term "criteria air pollutants" refers to those pollutants that have been judged most dangerous to health.

The answer is True: The term "criteria air pollutants" refers to those pollutants that have been judged most dangerous to health.

Explanation: The term "criteria air pollutants" is used by the Environmental Protection Agency (EPA) to describe a group of air pollutants that are regulated based on their potential to harm human health and the environment. These pollutants include particulate matter (PM), ground-level ozone (O3), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen oxides (NOx), and lead (Pb). The EPA sets National Ambient Air Quality Standards (NAAQS) for these pollutants based on scientific evidence about their health and environmental impacts. Therefore, the statement that "criteria air pollutants" refers to those pollutants that have been judged most dangerous to health is accurate.