Theresa Stephenson
Theresa Stephenson is one of AGAT’s leading experts in air sampling and Canadian regulatory requirements, recognized industry-wide for her technical accuracy and deep understanding of environmental laboratory processes. With more than 30 years immersed in air quality programs, she brings exceptional insight into sampling protocols, regulatory compliance, and the interpretation of complex analytical results.
Theresa is known for her ability to translate scientific detail into clear, reliable guidance that empowers clients to make confident decisions. Her expertise spans Air and HRMS programs, quality control, and specialized air sampling equipment, making her a trusted resource for both routine and advanced environmental testing needs. At AGAT, she continues to elevate Air Services through expert mentorship, technical leadership, and a people-first approach to service excellence.
Theresa Stephenson
Manager of Technical Services
AGAT Laboratories
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