Pinpointing the Source of Benzene Emissions in Real Time with RJ Lee Group Inc.

Benzene remains one of the most scrutinized air toxics under EPA Method 325B, requiring industry to not only monitor fenceline concentrations but also identify and mitigate root causes.  Do you have an excursion or a consent decree?  Do you need root cause analysis RCA?

That’s where our ultra-low detection capabilities are called upon with RJ Lee’s, mobile PTR-TOF-MS platforms.

Key Advantages:

• Real-Time Detection: Provides second-by-second data on BTEX compounds (benzene, toluene, ethylbenzene, xylenes).
• Root Cause Analysis: Rapidly traces measured fluxes back to leaking valves, tanks, or process units contributing to offsite impacts.
• Fenceline Assurance: Goes beyond passive tube monitoring by quantifying emission sources and supporting compliance with community exposure limits.
• Field Mobility: Deployable directly at refineries, chemical plants, and industrial sites to close the loop between monitoring and corrective action

With PTR-TOF-MS, facilities can move from “detection” to “action”—finding leaks, mitigating benzene releases, and protecting both compliance and community trust.

If your facility is seeking a faster, defensible path to source attribution under M325B, let’s connect.