Tetra Tech’s engineers and scientists offer significant expertise in air quality, greenhouse gas (GHG), and climate change technical services for heavy industrial clients, petroleum refineries, utilities, municipalities, academic institutions, ports and harbors, and airports.

Our expertise goes beyond monitoring to actual implementation efforts with the potential to improve the quality of life for people living and working in industrial areas.

Whether you are looking to take your first GHG inventory, implement a fleet-modernization program, or demonstrate compliance with local air quality regulations, Tetra Tech provides a diverse array of air quality services to meet your needs


  • Air quality research
  • Gas and particle sampling and analysis
  • Multimedia fate and transport models, including indoor vapor intrusion modeling
  • Human health risk assessment
  • Regulatory assessment
  • GHG emission inventory, reporting, and verification
  • Air quality improvements and action plans
  • Modernization and technology evaluation
  • Air quality outreach, education, and training programs

Tetra Tech understands the importance of impartiality as part of its validation or verification activities. Tetra Tech developed tools to assess, identify, and manage the risk of conflict of interest and ensure its objectivity during its GHG validation or verification activities.

Related Projects

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GHG Accounting Tool

Greenhouse Gas Accounting Tool for Water Sector Lending Projects

Evaluating the impact of water sector projects on greenhouse gas emissions around the world

Deepwater Wind Block Island

Deepwater Wind Block Island Wind Farm and Sea2Shore Cable: The Renewable Link

Providing siting, permitting, environmental evaluation, and construction compliance support for the first U.S. offshore wind farm off of Rhode Island

Clean truck program

Clean Truck Program

Replacing old, polluting diesel trucks with cleaner, low-emissions trucks in Los Angeles and Long Beach, California

ZULE Flare

ZULE Flare at Large Landfill Serving Las Vegas

Installing backup ultra-low emission landfill gas flare to comply with mandatory emissions reduction


Ypsilanti World-Class Biosolids Incinerator

Designing the cleanest burning, most advanced municipal biosolids incinerator system in the United States