Sysco Environmental Ltd recently carried out a project in Cardiff to monitor the exposure of enforcement officers to diesel fumes while testing vehicle fuel in their mobile laboratories. The officers faced exposure to fumes from both the traffic on the road and the running engines of the mobile laboratories. Our team conducted a thorough assessment, measuring the concentration of diesel fumes in and around the mobile labs. We provided evidence and reassurance to the staff that their exposure levels were minimal and that they were not at significant risk. This project highlights our commitment to ensuring a safe working environment for all personnel, even in challenging conditions.