Optical Gas Imaging (OGI) showing a visible emission plume escaping from an industrial stack during fugitive emissions monitoring, in line with the standard EN 17628:2022.

EN 17628:2022 Explained: Fugitive Emissions & Optical Gas Imaging for LDAR Surveys

28th April 2026

EN 17628:2022 sets out a structured approach for monitoring fugitive emissions using optical gas imaging (OGI) within LDAR surveys. This article explains what the standard means in practice and why it is important for compliance, environmental performance and regulatory assurance on industrial sites.