Petroleum Vapor Intrusion

Vapor intrusion occurs when vapor-phase volatile organic compounds migrate from sub-surface sources into overlying buildings. One type of vapor intrusion is Petroleum Vapor Intrusion, or PVI. This occurs when petroleum hydrocarbon vapors from gasoline or light distillate fuels, such as diesel or kerosene fuel enter a building. Hydrocarbon vapors entering indoor spaces can pose two threats; first, an immediate safety concern from potential explosive levels of methane or petroleum vapors and a longer term concern from the possible adverse health effects from inhalation exposure to toxic or carcinogenic hydrocarbons.

Alpha Analytical has a wealth of experience in the US and abroad in providing high quality Air Testing data in the support of decision making associated with petroleum sites. We offer a wide range of testing capabilities for Ambient and Indoor air, Sub-surface vapors, soil gas surveys and sub-slab samples, and extended hydrocarbon analysis to assist in site characterization.

Superior, intelligent data management systems coupled with the most sophisticated sampling media available in the industry today, makes Alpha Analytical the smartest choice to efficiently execute and manage your data with confidence.

Whether in the investigative phase, collecting soil gas or sub-slab samples, or performing confirmatory sampling that need definitive ambient and indoor air data, Alpha Analytical has the products and services to support your challenging Petroleum Vapor Intrusion investigations.


Air & Vapor Testing to Support Petroleum Vapor Intrusion Investigations



Volatile Organic Compounds (VOCs) [TO-15 or TO-14 analyte list]

NJDEP TO-15 List & NJDEP Deliverables

EPA TO-15 SIM Volatile Organic Compounds (VOCs) via SIM
EPA TO-17 Volatile Organic Compounds (VOCs)
MassDEP APH Air Phase Petroleum Hydrocarbons

Parafins, Isoparafins, Aromatics, Naphthalenes, Olefins - Extended Forensic Hydrocarbon List

EPA 3C Fixed Gases
EPA 3C (Modified) Methane, Ethane & Ethene
EPA TO-10A Polychlorinated Biphenyls (PCBs) - Aroclors
EPA TO-10A (Modified) Polychlorinated Biphenyls (PCBs) - Homologs & Congeners via EPA 8270D(M)
EPA TO-13 (Modified) Polynuclear Aromatic Hydrocarbons (PAHs) - Extended Compound List
NIOSH 6009   (Modified) Mercury in Air



Contact Alpha Analytical today for all your Petroleum Vapor Intrusion and Air Testing needs.

Call 800-624-9220 or email us at This email address is being protected from spambots. You need JavaScript enabled to view it..



Alpha Analytical is NELAC/TNI accredited for Air Analysis and is also certified in a number of States with Air quality programs. We are also certified by the NJDEP to perform both TO-15 and the NJDEP's TO-15 Low Level methods.


Petroleum Vapor Intrusion Equipment and Services

Customer Service and Technical Expertise for an Emerging Market

Alpha supports Vapor Intrusion projects daily.  Our team of experts regularly participates in the development of rules and guidance as well as industry research – including, the MassDEP Indoor Air background study.  Alpha Analytical is currently participating on the ITRC PVI work Group.

Alpha’s Air Testing experts are available to assist you with your analytical needs, method selection, development of Quality Assurance Project Plans and assistance with sampling protocols.


Highest Quality Equipment and Sampling Media

  • Over 1,200 Fused Silica-lined canisters (6.0, 2.7 and 1.0 Liter canisters), temporal and soil gas sampling
  • Digital Pressure Gauges, take the guess work out of recording pressures pre- & post-sampling
  • State-of-the-art GC/MS systems running simultaneous full scan and SIM acquisition modes
  • PUF cartridges
  • Sorbent tubes
  • PM-10 and TSP filters


  • 5-7 day standard - results on time and with confidence

ADEx™ & Data Merger

  • ADExTM is Alpha Analytical's online data management and reporting system
  • Provides instant access to your data once released from QA review
  • Fast, easy, secure access to your data when you need it
  • Data Merger allows you to build custom tables from multiple sampling events and review data over time - eliminates the struggles and hassles of dealing with data - let Data Merger do the work for you
  • Review your data against State or EPA health standards or screening criteria - up to 5 different criteria can be selected
  • Get a quick, real-time review of your data at your convenience

Courier Service - Driven to Deliver

Alpha supports Vapor Intrusion projects Nationwide. We provide both delivery and pick up for our media in our service areas with few exceptions. Large or small, our new Eco-line fleet of vehicles is here to serve you. Outside of our service area, we work with you to develop a strategy to meet your project data needs and ensure that media is there when you need it.

Largest Air Laboratory in the Northeast

With over 50,000 square feet of laboratory facilities in Westborough and Mansfield, Massachusetts and service centers extending throughout the Northeast - specifically in Portsmouth, NH; Mahwah, NJ; Piscataway, NJ; Albany and Buffalo, NY and our new service center in Holmes, PA - Alpha Analytical is building a seamless network of support centers to serve you and all your petroleum vapor intrusion testing needs.


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