Continuous Unattended Field Operation

Orsat has customized the installation of hardware and software to produce lab quality results in a robust field application for the continuous and unattended 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 and consultation 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 delivering lab-quality results in a continuous unattended field operation.

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

–Texas Commission 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.


Industry News


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



News & Upcoming Events

[POSPONED] 2020 EPA National Ambient Air Monitoring Conference

EPA, AAPCA, NACAA, and event organizers have been closely monitoring the outbreak of COVID-19, and Pennsylvania’s new guide for conference gatherings and when they can safely occur. After careful consideration, organizers have postponed the 2020 National Ambient Air Monitoring Conference in Pittsburgh. While it disappoints us all, we look forward to convening with you again when it is safe to do so. Organizers are working with the Pittsburgh Convention Center and Westin to reschedule the conference for 2021 and will send out an announcement when we have more information.

[CANCELLED] 2020 TCEQ Environmental Trade Fair & Conference

Due to the ongoing concern regarding Covid-19, the 2020 TCEQ Environmental Trade Fair and Conference has been cancelled. Orsat looks forward to exhibiting at next year's event.

2019 Mid-Atlantic Regional Air Management Association Monitoring Committee Training Workshop

This training workshop will include: roundtable discussions with member agencies; updates from EPA Region III and OAQPS; and presentations from invited speakers. Participants will share their experience meeting challenges with new air quality monitoring technology, updated data analysis and quality assurance methods, and revised regulatory requirements.

Hands-on AutoGC Tour at TCEQ ETFC in May

Get an up close look at both the PerkinElmer AND Markes/Agilent AutoGC systems currently monitoring 56 non-methane hydrocarbons (NMHCs) 24 hours a day seven days a week at over 35 sites across the US. Over 25 years of experience give Orsat special expertise in the deployment, maintenance, and operation of AutoGCs including the handling of the mountains of data. We'll be on hand at the TCEQ's Environmental Trade Fair & Conference May 14 -15 in Austin, TX.

Technical Presentation & Booth Exhibit: AWMA Measurement Methods and Technology Conference

The upcoming NAAQS deadline in June has everyone rolling up their sleeves to get all the new systems up and running. Don’t miss Carol’s upcoming presentation: Visualization and Validation of PAMS AutoGC Data, and be sure to stop by the booth to speak to the continuous PAMS experts at Orsat.


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