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Audit Services

Products and Services


Argos’ staff has participated in the development and implementation of EPA and CARB technical system audits and has served as technical signatories on various compliance audits on more than twenty air quality programs worldwide. Argos’ staff includes experts who currently serve as ISO 17025 assessors for South African Accreditation Systems in the area of open-path fence-line air monitoring. In addition, Argos’ staff has extensive experience in developing ISO accredited fence-line air monitoring systems using ISO 9001 and 17025 performance standards and is actively involved in the ASTM standards development of fence-line air monitoring systems.

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    Low-Cost Particulate Sensors

    Products and Services


    Argos has developed an innovative low-cost particulate sampling system that can be used to identify local sources for particulate matter.  The systems are currently being deployed in the City of Los Angeles on street poles and are being installed in Portland, Oregon to assess the impact of local pollution sources on an Environmental Justice community. The ability to combine low-cost sensors with high accurate measurement results allows for the systems to be used for source identification and mitigation.

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    Methane Monitoring

    Products and Services


    Argos has recently developed a methane monitoring systems that can be deployed in a wide array of configurations including permanent and mobile applications.  The systems are being deployed in communities where methane emissions are of specific concern and real-time measurements are critical. Data from the systems are being used to assess health impacts of residents as well as being used to notify community residents in the event of odorized methane being detected.

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    Open-Path H₂S Air Monitoring

    Products and Services


    Argos is working with our partners M&C Tech Group and AirOptic to bring the first open-path Hydrogen Sulfide air monitoring system to the US that can meet regulatory compliance standards.  The system can detect H2S gas at concentrations that are lower than the odor thresholds for humans. The systems have been deployed in a number of sites in California where are they used to meet local air district compliance programs.

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    Open-Path UV Air Monitoring Systems

    Products and Services


    Argos’ staff has extensive knowledge in open-path and point monitoring air quality instrumentation.  This includes working with and operating numerous commercially available open-path FTIR, UV-DOAS, and Tunable Diode Laser air monitoring systems. Key personnel have over 30 years’ experience in both the design and manufacturing of open-path FTIR and UV-DOAS air monitoring systems. In addition, Argos has over 15 years’ experience working as program managers of open-path and point monitor fence-line systems at various refineries around the world.  We are currently involved with overseeing the installation and operation of numerous open-path UV-DOAS air monitoring systems developed by the UCLA Atmospheric and Oceanic Sciences Department.  These systems are considered the “gold-standard” in open-path UV air monitoring.

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