The National Air Quality Information System (Sinca) monitors air quality and utilizes a five-phase alert level system. These phases range from “good” to “emergency,” providing a gradient of air quality status. The system is currently being applied in Puente Alto. This method allows authorities to assess and respond to varying degrees of pollution. The alert levels guide public health recommendations and potential restrictions based on air quality. Sinca provides vital data for understanding and managing environmental health risks. This system's implementation aims to protect residents from harmful air pollution levels.