Which entity's website would be visited for smog pollution information?

The best choice for obtaining smog pollution information is the Department of Environmental Quality. This agency is specifically tasked with managing and regulating environmental issues, including air quality and pollution control. They provide guidelines, reports, and data concerning various pollutants, including smog, which is a significant environmental concern in many urban areas.

The Department of Transportation primarily focuses on the development and maintenance of transportation infrastructure, and while they may address issues related to vehicle emissions, they do not specialize in environmental pollution data. The Department of Interior oversees the conservation of natural resources and federal lands but is not involved specifically with air quality issues. The Department of Health may address health impacts related to pollution but does not typically provide comprehensive data and regulations regarding smog and air quality directly. Thus, the Department of Environmental Quality is the appropriate entity for this type of information.