Sunset Laboratory Inc. Employee Directory
Environmental ServicesOregon, United States11-50 Employees
Sunset Laboratory Inc. is an environmental services firm based in Tigard, Oregon, founded in 1984 to perform OCEC analyses on glass, quartz and other environmental filter samples. Its instrument lineage began with a thermal-optical OCEC system developed from work at the Oregon Graduate Institute, a design that became the basis for NIOSH Method 5040, and the associated journal article earned the NIOSH Alice Hamilton Award in 1996. In 2000, the company introduced a semi-continuous, real-time, in-situ carbon aerosol field instrument whose time-resolution and laser-based pyrolysis correction provide refined information about particle origins, health exposures and changes in air quality. Within the environmental services industry, Sunset Laboratory focuses on carbonaceous aerosol analysis, serving researchers and other stakeholders who rely on detailed characterization of aerosols captured on environmental filters. A notable recent development is the April 2026 launch of PES in 36mm filter sizes, expanding the range of filter formats the company can support.