Fugitive Emissions & Ambient air

Fugitive Emissions

The term “fugitive emissions” refers to the release of potentially dangerous gases into the atmosphere at industrial facilities through process equipment leaks.  Most equipment leaks occur at valves, flanges, seals, sample connections, and fittings.  Beyond the human health and safety risks associated with fugitive emissions, they also pose a pollution risk to the environment as well as a financial/product loss for the facility.

There are many screening tools used to detect and locate fugitive emissions, however when accurate identification and quantification is required, laboratory support is needed.  Through our Enthalpy division, Montrose Environmental Group has assisted with fugitive emissions and leak detection and repair (LDAR) programs for over 20 years.  We understand facility processes via stationary source emissions and ambient air monitoring experience.  Working knowledge of how these two practices are similar but also different is a valuable perspective that Montrose Environmental Group can bring to your next program.

Often, fugitive emissions projects require ongoing fenceline monitoring to ensure LDAR programs are reducing environmental and facility risk.  Whether fugitive emissions identification, quantification, or ambient air monitoring is required, we can provide analytical support for even the most challenging projects.

EPA Methods:

Our scientists, leaders in the field, have been analyzing EPA Method TO-14A canister samples for Ozone Precursor/Photochemical Assessment Monitoring Station (PAMS) Volatile Organic Compounds (VOC) since 1997.  Montrose Environmental Group has the ability to screen and analyze for over 50 compounds, including aromatics and C2-C12 hydrocarbons.  TO-14A is a robust sampling and analytical method commonly used in petroleum refinery and petrochemical manufacturing applications.

TO-14A samples are collected in leak-free, stainless steel canisters and analyzed by high-resolution gas chromatography utilizing Flame Ionization Detection (GC/FID). With dedicated laboratory space and a large inventory of sampling canisters, our modern facility allows us to handle a wide range of samples. From percentage to part per trillion (ppt) levels, we have the experience and know-how to handle any sampling scenario.

Montrose Environmental Group can prepare, evacuate and ship canisters for TO-14A sampling on short notice – no project is too big or too small – and, with nearly 20 years of experience analyzing TO-14A samples, our dedicated project managers and staff have you covered.

Click here to download target compound list.

We have been analyzing ambient level canisters by EPA Method TO-15 – for over 70 Volatile Organic Compounds (VOCs) for almost 20 years.  Designed as an ambient test method, TO-15 is used for Ambient Air MonitoringVapor Intrusion (VI) investigations and soil gas projects.  TO-15 samples are collected in leak-free stainless-steel canisters and analyzed by gas chromatography utilizing a Mass Spectrometer (GC/MS).

GC/MS has the unique ability to identify unknown compounds, which has proved to be a useful addition to the stationary source emissions tester’s repertoire.  Our dedicated laboratory space ensures that we can analyze samples from ppb to ppt levels.  If you’re looking for more than just the TO-15 compounds, samples can be scanned against our NIST library consisting of over 240,000 compounds which allows for identification of unknown compounds.

We have a large inventory of stainless steel canisters and a wide range of controller configurations that permit us to support a variety of air programs.  With in-house Ambient Air, VI, soil gas, and stationary source emissions experts, Montrose Environmental Group is uniquely positioned to provide your project with experienced GC/MS scientists who understand air testing and analysis.

Developed for the Petroleum Refinery Residual Risk and New Source Performance Standard (NSPS), EPA Method 325B is designed to monitor Benzene and select Volatile Organic Compounds around refinery fencelines by utilizing passive sampling tubes.  These tubes are simply hung and exposed to the environment for a period of time before being sent to the laboratory for analysis by Thermal Desorption – Gas Chromatography with Mass Spectrometry (TD-GC/MS).

The Enthalpy Analytical team has been analyzing Method 325B samples for Benzene monitoring since 2013, and we have participated in numerous round-robin studies. We were there from the beginning and have assisted the EPA with development and validation of Method 325B.  Because of our unique involvement with this method, we are on the cutting-edge of this technology and are still working tirelessly to refine our best-in-class analytical approach and data delivery for Method 325B.

Not sure where to start? Let us help you design and execute your fenceline monitoring program.  Contact us today for assistance implementing your new ambient program or modifying your existing one and we’ll put our experience to work drafting your quality assurance procedure and training for your personnel.

With Montrose Environmental Group and Enthalpy on your team, your program starts with a solid foundation and understanding of EPA Method 325B.

Other Methods:
Radiello Passive Samplers

Ambient Air Monitoring

Montrose Environmental Group, Inc. boasts a team of highly knowledgeable analysts, strategic project managers, and senior staff members capable of managing indoor and outdoor ambient air programs.  Experience with residential, industrial and remediation program objectives allows tailoring of project-specific solutions instead of “a one size fits all approach” that other labs offer.  We understand the challenges of collecting representative air samples and our well-rounded team makes us an industry leader.

We utilize Summa canisters for the collection of various Volatile Organic Compounds (VOCs) by EPA Method TO-15 as well as petroleum hydrocarbons by EPA Method TO-14A.  We are experienced in the use of PUF cartridges and XAD-2 adsorbent tubes for the collection of poly Aromatic Hydrocarbons (PAH) and Semi-VOCs as required by TO-13A.

Our well-maintained, up-to-date inventory of sampling equipment will keep your projects on schedule.  The state-of-the-art laboratory of Montrose Environmental Group, Inc. provides some of the lowest detection limits in the industry, allowing us to help meet your project objectives with ease.

EPA Methods:
325B, TO-3, TO-5, TO-8, TO-11A, TO-13A, TO-14A, TO-15

Other Methods:
Radiello Passive Samplers

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