ALS - Columbia specializes in the analysis of volatile and semi-volatile organic compounds, sulfur compounds and other hazardous substances in a wide variety of air and vapor matrices. Established in 1988, the specialized air quality laboratory provides high quality data, superior customer service, and reliable project management.

Air Testing Services

LEED Testing

ALS - Columbia provides analytical services to support the Leadership in Energy and Environmental Design (LEED) Green Building Rating System® for New Construction (LEED-NC) EQ Credit 3.2, Construction IAQ Management Plan Before Occupancy.

Vapor Intrusion

ALS - Columbia has the analytical expertise and project management capabilities to support a variety of soil vapor intrusion and indoor air investigations. Subsurface vapor intrusion has become a topic of particular interest due to factors including:

• Increased recognition of vapor intrusion as an important exposure pathway and greater emphasis on the remediation of contaminated sites that introduce harmful substances into indoor air.
• The recent publication of key state and federal vapor intrusion guidance documents.

Odor Investigations

We offer several different sampling and analytical methods to address compounds with very low odor thresholds:

• Carboxylic Acids
• Amines
• Ammonia
• Aldehydes
• Reduced Sulfur Compounds
• VOC Screen

Air Phase Petroleum Hydrocarbons

ALS - Columbia is one of the few laboratories in the nation to offer analysis of indoor air, ambient air, sub-slab, and soil vapor samples via the Massachusetts Department of Environmental Protection (MassDEP) Air Phase Petroleum Hydrocarbons (APH) Method. This whole-air method is based upon EPA Method TO-15 (GC/MS, stainless steel canisters), but reports target compounds and aliphatic/aromatic hydrocarbon ranges specifically associated with petroleum products.