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Ethylene Oxide Monitoring Systems

In the complex landscape of industrial emissions monitoring, the need for accurate and reliable solutions has never been more important. As industries and regulations grow and diversify, so do the challenges in ensuring environmental compliance and safety. Designed for the intricacies of industrial environments, CRDS offers unparalleled accuracy with analyte-specific measurements in real-time. This ensures that actual emissions of target gases are detected and differentiated with the highest data confidence. In industries where every reading can have significant operational and regulatory implications, the reliability offered by Picarro's CRDS technology is invaluable. It not only aids in regulatory compliance but also paves the way for industries to adopt best practices in process optimization and confidently monitor their emissions. Picarro systems alleviate many of the issues found with complex, less precise technologies by addressing key performance metrics such as lower limit of detection, response time, stability, precision, and reliability.

System Overview

  • Simplifies monitoring by eliminating the need for sample pretreatment, filters, chromatographic separation, and complex peripherals, as required by traditional methods like GC and FTIR.

  • Real-time, continuous monitoring with Cavity Ring-Down Spectroscopy (CRDS) provides highly sensitive and rapid detection of Ethylene Oxide, with detection limits as low as 0.25 ppb in under 2 seconds.

  • Enjoy the highest operational uptime with long-term calibration-free performance, and specific sensitivity to ethylene oxide without false spikes from other gases.

  • Data Acquisition Systems (DAS) are an integral part of effective emissions monitoring and environmental compliance. Picarro monitoring systems incorporate advanced features to create robust monitoring, control, and reporting capabilities for real-time insights and simplified data management.

  • Offering turn-key solutions, system design, onsite training, and ongoing support, ensuring long-term reliability and compliance with regulatory requirements.

  • Industry leaders help you manage projects, choose equipment, and stay compliant with regulations for a smooth operation.

Portfolio Overview

Continuous Emissions Monitoring System (CEMS)

The Picarro Continuous Emissions Monitoring System represents an industry leap in CEMS system design and performance.

Novel improvements of an industry tested designed have produced a turn-key, automated system with high-quality components, designed to accurately monitor Ethylene Oxide (EtO or EO) emissions from one or more stacks and/or process ducts.

An on-board Data Acquisition System (DAS) automatically collects, records, and reports all emissions concentration data, flow rates, system performance and calibrations.

The Picarro CEMS is designed to meet all current and upcoming performance requirements and regulations for EO monitoring (OTM-47, PS-19, and others).

Workplace Monitoring System (WMS)

The Picarro Workplace Monitoring System is a state-of-the-art solution designed to monitor employee exposure and safeguard operations.

The system samples up to 25 different locations for continuous, real-time monitoring of fugitive emissions, leak detection, and process efficiency.

It utilizes a robust multiplexing system that enables high gas flow rates, minimizes cross port contamination, and quickly reports accurate Ethylene Oxide concentrations across the entire facility.

With automated reporting, notifications, and alarming, your workforce is protected at all times.

Fenceline Monitoring System (FMS)

The Picarro Fenceline Monitoring System is a robust, field-deployable system designed to continuously measure low levels of Ethylene Oxide with defensible results.

The on-board Data Acquisition System (DAS) combines fast, highly sensitive concentration data with high-frequency meteorological data for accurate source attributions.

A modular sampling design allows for the collection of real-time data (seconds), as well as canister samples (minutes to hours). With a mobile form factor, robust environmental control, automated calibration and QA/QC steps, and cellular connectivity, the system is designed to operate continuously for months in the field.

Ethylene Oxide Emissions Monitoring


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Picarro Inc. Headquarters

3105 Patrick Henry Dr. Santa Clara, California 95054 USA


+1 408 962 3900