A large west coast refinery as part of a good neighbor agreement, contracted with Terra Air Services to design and install a real-time emissions monitoring system utilizing open-path remote sensing technologies to include FTIR, UV, and TDL units. Meteorological data is collected concurrently with emissions data. The complete system incorporates two FTIR, two UV, two laser units and six organic gas detectors. All open-path instruments are timed to scan every five minutes or less. System data can be accessed on a daily, weekly, or monthly schedule. High alarm readings are reported immediately and appropriate action taken to notify the plant and surrounding communities. A total of thirty-four toxics are monitored with the possibility of including other species of concern when required. This paper describes system layout, implementation and operational functions.
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