Air Quality
Air Quality Testing Services
SGS provides end-to-end air quality testing—from vapor intrusion investigations to ambient air monitoring, stack emissions compliance, and CO₂/biogenic content verification—delivering defensible, regulatory-aligned data. Our nationwide lab network applies standardized, accredited methods helping industrial, consulting, and public-sector clients meet Clean Air Act and other regional obligations with confidence.
Our scope covers soil vapor/sub-slab programs using TO-15A canister GC/MS with rigorous QA/QC; ambient air monitoring with TO-3, TO-12, TO-14/15 and ASTM refinery gas methods plus field-ready canister and Tedlar® options; stationary source (stack) testing for dioxins/furans, PCBs, and PAHs under EPA Method 23 (2023 update); and Carbon-14 (AMS) analysis to determine biogenic/biobased fractions in fuels, emissions, and products to ASTM and ISO standards.
Soil Vapor / Soil Gas:
TO-15A canister GC/MS at ppt–ppb levels; standardized cleaning, calibrated flow controllers, and robust QA/QC for reliable results. Learn More
Stack Emissions:
Ultra-trace POPs by EPA Method 23 with updated 2023 requirements; clean media supply (e.g., PUF/XAD2) and specialty sampling support. Learn More
Ambient Air:
TO-3, TO-12, TO-14/15, ASTM D1945/1946/7833; canister sizes (400 mL–6 L), 30-day canister hold times, and short-hold Tedlar® bag options. Learn More
CO₂ / Biogenic Content:
Carbon-14 (AMS) testing aligned to ASTM D6866, ISO 16620-2, EN 16640, and ISO 13833 for transparent claims and certifications. Learn More
Interested in our indoor, occupational and industrial hygiene solutions? See our Industrial Hygiene services.
Planning Tools
Tailored Sampling & Analysis Guides and MLE-based programs to reduce uncertainty and accelerate decisions.
Contact SGS
Soil Vapor / Soil Gas
Ambient Air
Stack Testing
