What are emissions that leak directly from loose joints, fittings, and holes in pipes called?

Fugitive emissions refer to the unintended releases of gases or vapors from pressurized equipment due to leaks, gaps, or other anomalies in the system. These emissions typically escape from joints, fittings, and holes in pipes, which may not be easily controlled or captured through conventional pollution control systems. The term emphasizes the lack of direct containment and highlights the importance of monitoring and repairing leaks to reduce unintended atmospheric releases.

In contrast, direct emissions refer to emissions that come from identifiable sources such as vehicles or industrial processes and can be directly measured. Point-source emissions are categorized by having a specific, identifiable source from which pollutants are discharged into the environment, often through a stack or vent. Pinpoint emissions is not a standard term used in environmental science relating to air quality. Therefore, recognizing the nuances of these emissions is crucial to understanding their impact on air quality and the need for appropriate management strategies.