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Analytical Services Section




Low Volume Initiative (LVI)

Alpha Analytical recognizes the challenges of conducting routine water sampling in a highly competitive market. Alpha now offers a Low Volume approach to specific extractable analysis. We undertook this initiative in effort to advance it’s technology offerings, reduce sample collection efforts, minimize the use of organic solvents and reduce waste. This technique employs the same methods as before using less sample volume and less analytical reagents. 

Please see the attached Technical Bulletin or contact your sales representative for more information. 




Per and Polyfluoroalkyl Substances (PFAS) Compound List

Alpha Analytical's List of 24 Compounds


Contact Alpha Analytical today for all your Emerging Contaminant needs or if you have any questions.

Call 800-624-9220 or email us at .


Semivolatile Organic Compounds in Air

SVOCs in Air: PAH Analysis (Alkylated PAHs, HPAHs & PAHs in Air)

Alpha offers EPA Method TO-13A analysis for PAHs in air monitoring programs and has extensive experience providing this analysis for conducting fence-line monitoring during site remediation for MGP and other types of sites. When Method TO-13 is used, low recoveries for naphthalene are typical, XAD-2 should be included in the PUFs to reduce losses. If Naphthalene is the risk driver for PAH’s then TO-15 can be considered.

TO-13A can be run with high or modified for low volume mode depending on the data needs. PAHs that are typically reported may be present in particulate & vapor phases. Consideration should be given to the data objectives when setting up the sampling program. Reporting limits are a function of volume collected. High volume samplers typically will collect >300 M3.

In addition to full scan Method TO-13 PAHs, Alpha offers a SIM product to further lower the reporting limits. We have also developed a SVOC (SW-846 8270C Type ) list which includes compounds that maybe of concern where remediation is active.

It is important to use a sorbent media chain of custody form when submitting samples. PUFs are supplied cleaned certified. After sample collection, the sample should be sealed up in the same shipping container, cooled to <4 degrees Celsius and shipped in a cooler.

In New York, the New York State Department of Health (NYSDOH) has published a MGP marker list.  Alpha Analytical offers both the PAHs & VOCs identified in NYSDOH vapor intrusion guidance. These include:

  • Thiophenes: thiophene, methylthiophene, ethyl thiophene, benzothiophene
  • Alkyl-substituted benzenes: 1,2,3-trimethylbenzene, 1,2,4,5-tetramethylbenzene
  • Aromatics: indane, indene, naphthalene, 1-methylnaphthalene, 2-methylnaphthalene

Contact Alpha Analytical today for your upcoming Air Testing project.

Call 800-624-9220 and speak with one of our technical experts or email us at .


Vapor Intrusion State Table

What do I need to know about Vapor Intrusion Testing in neighboring state?

The matrix is provided to assist in giving a basic understanding for laboratory requirements for air testing to support Vapor Intrusion (VI) programs in New England and Mid-Atlantic States.

State VI guidance are accessible by web search. However, some are much more user friendly than others. Alpha Analytical maintains NELAP accreditation in states who offer certification.

Connecticut and Massachusetts have self-certification programs which requires the laboratory to complete a QA/QC evaluation which is included in the laboratory deliverable. The state reviews laboratory data deliverables in the process of reviewing site reports submissions.

A number of states do not offer state Certification/Accreditation for air methods.  Alpha Analytical is your partner for Air and Vapor Intrusion testing in which ever state your project is located.

New England States ME NH MA VT CT RI

State  Program/Guidance

NELAP Accreditation*   Y N N N N
State Certification (Air)  Y  Y  CAM  Y RCP  N
State Deliverables   N Y N  Y N
Stand-alone VI Guidance / Fact Sheet  Y Y Y Y N N
Specific VI Compound List  Y Y Y N N N
TO-15 SIM Required for VISL   Y Y Y Y Y
Screening Tables   Y Y Y N N N
Laboratory Clearly Defined  Y Y Y N Y N
User Defined   N N N Y Y Y


Mid-Atlantic States NY NJ PA  DE MD DC

State  Program/Guidance

NELAP Accreditation*   Y Y N N N N
State Certification (Air)  ELAP  Y N N N N
State Deliverables   Y Y N N N N
Stand alone VI Guidance / Fact Sheet  Y Y Y Y Y Y
Specific VI Compound List  Y/N Y N N N N
TO-15 SIM Required for VISL   Y N Y Y Y Y
Screening Tables   Y Y Y Y Y Y
Laboratory Clearly Defined Y Y N N N Y
User Defined  Y N Y Y Y Y

 * States without Air certification prefer data reported by a laboratory with NELAP Accreditation for methods reported. 

Recent state guidance updates include: the New Jersey Department of Environmental Protection (NJDEP) technical guidance document notice dated 01-18-18 (revision 4.1) and corresponding change log can be found on the SRP Guidance Library (


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

To speak to one of our technical experts please fill out the form to your left. 


Particulates and Metals in Air

Particulates: Total Suspended Particulate (TSP) & PM 10

Matrices: This method is applicable to filters used for the collection for PM-10 and TSP.

Pre-field filters are conditioned in a chamber of constant humidity and temperature and are gravimetrically  tared. After air samples have been collected, the filters are returned to the laboratory and conditioned as before and weighed. The filters are numbered and placed in a large envelope to be delivered to the field they should be returned to the laboratory in the same envelope. The final filter weight minus the tare weight is calculated.

Sampling Recommendations

Gloves must be used when handling the filters, as oil residue from hands may contribute to the sample weights or cause tearing of the filter. Small differences in weights can

significantly affect the final calculation.  Care with handling and a quick return to  Alpha Analytical with completed documentation are key to quality data for this method.

PM-10 and TSP filters: TSP glass filters: 8 x 10 in. size from Whatman (No.: 1882-866),

or equivalent. PM-10 quartz filters: 8 X 10 in. size from Whatman (No.: 1851-8866), or

equivalent. Filters are pre-numbered by the manufacturer.

Metals in Air

Metals in air are a concern from inhalation. Metals typically  are present in particulates as minerals or chemical compounds.

40 CFR Part 50 App G Lead in Air

The EPA level for lead in air is 0.15 µg/m 3, analysis performed by Pb in total suspended particulate matter (Pb-TSP).

Pb-TSP is collected for 24 hours on a TSP filter as described in Appendix B of part 50, the Reference Method for the Determination of Suspended Particulate Matter in the Atmosphere (High-Volume Method). This method is for the analysis of Pb from TSP filters by Inductively Coupled Plasma Mass Lead analysis is performed by Spectrometry (ICP-MS)

Total Metals IO3  (similar methods NIOSH 7100)

Total metals analysis is performed by collecting sample of a 37mm cartridge filter then digesting the total collected sample/filter and analysis by EPA SW-846 Method 6020B. The range of metals reported is limited by filter blank concentrations maybe of concern. Typically RCRA metals are requested, less mercury which is analyzed by Method 6009.

Results are reported as weight on filter. They can be reported in ug/M3 if volume is provided.

Important to use the sorbent media Chain of Custody.

Key considerations are the quality of air being sampled (the source) and total volume collected.  



Contact Alpha Analytical today for your upcoming Air Testing project.

Call 800-624-9220 and speak with one of our technical experts or email us at .



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