Continuous Unattended Field Operation

Orsat has customized the installation of hardware and software to produce lab quality results in a field application for the measurement of VOCs in ambient air

Orsat is a team of engineers and technicians

About Us

Orsat has been involved with continuous unattended ambient air VOC monitoring since its earliest implementation in the State of Texas Coastal Oxidant Assessment for Southeast Texas (COAST) program in 1994. Today, Orsat’s services encompass all aspects of site operation from deployment to operator training and application assistance in topics ranging from Microsoft Windows operation to gas chromatographic theory.

In particular, Orsat has customized the installation of hardware and software configured to operate co-operatively in the Windows environment which produces a robust application capable of continuous unattended field operation.

[Orsat] performed exceptionally considering that there had to be communication between three agencies.

–Texas Commision on Environmental Quality

The end user is provided with certification data detailing the individual system performance at the time of start-up including background, detection limits, precision and linearity. Once configured, data recoveries are routinely 90–95%.

Over the past three decades, Orsat has deployed over 40 sites and currently maintains over 35 sites in the state of Texas for both public and private industry. In particular, Orsat has worked closely with the Texas Commission on Environmental Quality (TCEQ) to monitor air quality in the Barnett and Eagle Ford Shale Formations.

Orsat is a State of Texas certified Historically Underutilized Business.


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Client Feedback

7 April, 2014

Exceptional customer service – Orsat consistently provides excellent customer service. They respond quickly to email requests, return phone calls promptly, and follow-up on date requests. Carol responded quickly and accurately when contacted early in the last quarter to provide a quote for relocating several autoGC monitors. Amy provided a list of Orsat inventory and the surplus inventory promptly. This company attends all requested meetings and comes prepared. They are responsive to concerns from agency staff about AutoGC method adjustments.
—Texas Commission on Environmental Quality

7 April, 2014

Provided technical/training/set-up assistance when not required – Orsat provided several training sessions with new operators and assisted them in their transition into their new role.
—Texas Commission on Environmental Quality>

1 October, 2013

[Orsat] performed exceptionally considering that there had to be communication between three agencies
—Texas Commission on Environmental Quality


Orsat News

Separation Science eSeminar Now Available On-Demand

Back in June, Orsat’s Carol Meyer presented Hourly Monitoring of Non-Methane Hydrocarbons (NMHCs) by AutoGC for Photochemical Assessment Monitoring Stations (PAMS) as part of Separation Science’s 3rd online eSeminar focusing on advances in environmental analysis, Advances in Environmental Analysis eSeminar. Registration is required.

SepSci Logo
New White Paper: Hourly PAMS Monitoring of Non-Methane Hydrocarbons by AutoGC: A Practical Approach to Automation and Quality Control

Carol Meyer’s presentation from Air & Waste Management’s 2016 Annual Conference & Exhibition in June is now available for download.

Cover of White Paper
Cover of White Paper
New White Paper: The Analysis of Ozone Precursors by AutoGC: The Role of Calibration and Quality Control Strategies in Data Management for Fully Automated Thermal Desorption–GC–FID Systems

Carol Meyer’s presentation from Air & Waste Management’s Air Quality Measurement Methods and Technology Conference in March is now available for download.


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