Helping a Refinery Reduce Emissions and Protect Communities
Benzene—a regulated volatile organic compound (VOC) closely monitored under federal and state standards—prompted one refinery to take a closer look after preliminary data revealed elevated levels near its facility.
Rather than wait for the problem to escalate, the team acted swiftly—recognizing an opportunity to proactively address emissions and protect community well-being. They partnered with Montrose to investigate, demonstrating strong leadership in environmental stewardship.
A Stepwise Strategy for Rapid Benzene Detection
Montrose deployed its Proton Transfer Reaction Time-of-Flight Mass Spectrometry (PTR-TOF-MS) mobile laboratory—an advanced platform that detects volatile organic compounds (VOCs) in real time. Working in and around the refinery, the team conducted an extended survey that combined ambient air testing with source detection algorithms.
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Initial Monitoring: Mobile surveys identified benzene peaks around the fenceline.
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Extended Monitoring: The mobile platform stayed onsite overnight, capturing continuous data to refine potential sources.
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Source Detection Algorithms: Advanced analytics narrowed down likely emission points within the facility.
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Targeted Point Sampling: Our team tested 6 potential sources directly, and two of these were confirmed with significantly elevated benzene concentrations.
Unlike traditional approaches that can take weeks, mobile PTR-TOF-MS provided defensible results in just days.
Turning Data into Action
Armed with precise source attribution, the client immediately took steps to remediate the issues. Process changes were implemented, and emissions were reduced almost immediately. The client reinforced trust with stakeholders.
From Detection to Source Identification: Setting a New Standard in Benzene Monitoring
In just five days and 90 hours of monitoring, Montrose used mobile mass spectrometry to move beyond broad detection and trace emissions back to their exact sources. Two high-impact release points were identified and quickly remediated—reducing emissions, avoiding potential penalties, and minimizing risks for nearby residents.
This project illustrates how mobile monitoring transforms raw data into actionable insights and sets a new benchmark for benzene monitoring in the refining sector. By moving quickly from detection to source attribution, facilities can shorten compliance timelines, reduce exposure risks, and strengthen trust with both regulators and communities.
Key Facts
- 2 high-impact benzene sources identified and remediated (1 major, 1 minor)
- 90 hours of continuous monitoring over five days
- Excess emissions reduced in record time
About the Author
Steve Yuchs
Vice President, Technical – Real Time Air and Emerging Technology
Steve has over 25 years of experience in air quality testing, environmental compliance, and emerging monitoring technologies.
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