Final answer:
Air quality metrics data are reported to entities involved in monitoring and regulating air pollution, including the Environmental Protection Agency (EPA). The EPA collects and analyzes air quality data to assess pollution levels and reports this data to various stakeholders.
Step-by-step explanation:
Air quality metrics data are reported to various entities involved in monitoring and regulating air pollution. The Environmental Protection Agency (EPA) plays a major role in setting and enforcing national air quality standards. They collect air quality data from monitoring stations and analyze it to assess the levels of pollutants in the outdoor air. The EPA reports this data to other EPA headquarters staff, EPA regional offices, state and local environmental agencies, and the public.