Industrial Hygiene Testing | AGT Labs

OSHA, NIOSH, and EPA-compliant analysis of air, noise, dust, and chemical exposures.

Welcome to Our Lab

AGT Labs Industrial Hygiene Testing

Industrial hygiene testing based in Houston, TX is a division of AGT Labs delivers trusted solutions to protect worker health and ensure full OSHA, NIOSH, and EPA compliance.

We specialize in Asbestos, Silica (RCS), Lead, Metals, Dust, Mold & Bioaerosols, VOCs, IAQ, Noise, and Heat Stress testing, providing certified sampling and expert analysis for safer, compliant workplaces.

Our Accreditations and Certifications

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Our Industrial Hygiene Testing Services

Testing

Sampling & Analysis

Asbestos Testing

We provide comprehensive testing for both Friable and Non-Friable Asbestos Materials and airborne fibers, ensuring strict compliance with OSHA (29 CFR 1910.1001 / 1926.1101) and EPA regulations. Our services include bulk sampling using Polarized Light Microscopy (PLM) and advanced air monitoring via Phase Contrast Microscopy (PCM) for clearance and Transmission Electron Microscopy (TEM) for definitive identification.

Mold & Bioaerosols

Our experts conduct detailed Indoor Air Quality (IAQ) Investigations to identify sources of moisture intrusion, assess building systems, and evaluate exposure to biological contaminants like Aspergillus, Penicillium, and Stachybotrys. We employ various Air and Surface Sampling techniques, including spore traps, tape lifts, and swabs, to adhere to state regulations (e.g., Texas Mold Assessment and Remediation Rules) and ACGIH guidelines.

Respirable Crystalline Silica (RCS)

To meet the stringent OSHA Respirable Crystalline Silica Standard, we offer specialized exposure monitoring for crystalline forms like Alpha Quartz, Cristobalite, and Tridymite. Our process involves personal air sampling using cyclones and filter media, which is then analyzed using sophisticated methods like X-Ray Diffraction (XRD), typically following NIOSH 7500/OSHA ID-142 procedures.

Dust, Total & Respirable

We perform monitoring for general workplace particulates, classified as Particulates Not Otherwise Regulated (PNOR). Our service involves Gravimetric Analysis via air sampling to accurately measure both the total mass of dust and the smaller, more hazardous Respirable Dust fraction that can penetrate deep into the lungs, ensuring compliance with general industry OSHA Permissible Exposure Limits (PELs).

BTEX / VOCs / TO-15 & TO-17

For organic vapor analysis, particularly within petrochemical and manufacturing environments, we utilize specialized Air Monitoring techniques, including charcoal tubes, passive badges, and Tedlar bags/Canisters. This service targets BTEX (Benzene, Toluene, Ethylbenzene, Xylene), monitors Total Volatile Organic Compounds (TVOC), and analyzes specific air pollutants using EPA Method TO-15 to verify compliance with OSHA PELs and ACGIH TLVs.

Solvents, Acids, and Alkali

We assess employee exposure to a wide array of reactive and corrosive agents such as Acetone, Isocyanates, Formic Acid, and Sodium Hydroxide. Monitoring is achieved through Chemical-Specific Sampling, employing specialized collection media like sorbent tubes, impingers, or passive badges, with analysis tailored to meet specific OSHA PELs and ACGIH TLVs for each individual compound.

Inorganic Chemicals / Reactive Gases Testing

We provide real-time and time-weighted average monitoring for highly hazardous inorganic gases and vapors, including Hydrogen Sulfide (H2S), Carbon Monoxide (CO), Ammonia (NH3), Ozone (O3), and Chlorine Gas (Cl2). We utilize both Direct Read Instrumentation (electrochemical sensors) for immediate safety checks and Impinger/Treated Filters for laboratory-based compliance analysis against OSHA PELs/Ceiling Limits.

Metals in Air & Welding Fume Testing

To protect welders from the complex mixture of airborne contaminants, we conduct targeted air monitoring for Welding Fumes Metals such as Iron, Manganese, Nickel, and Cadmium. Samples collected on Mixed-Cellulose Ester (MCE) filters are analyzed using techniques like ICP or AA spectrometry, with all work calibrated to OSHA PELs for individual fume components.

Lead Testing ( Air, Paint, & Surfaces )

Our lead services address industrial and construction hazards, including monitoring for Airborne Lead dust and assessing bulk materials. We use X-Ray Fluorescence (XRF) for rapid Lead in Paint surveys and perform lead wipe testing for clearance following abatement, ensuring adherence to the stringent OSHA Lead Standard (29 CFR 1910.1025) and EPA RRP rules.

Metals and Hexavalent Chromium (Cr VI)

Beyond general welding fumes, we specialize in assessing exposure to highly toxic metal compounds. This includes monitoring for trace metals like Beryllium and conducting specific sampling and analysis for Hexavalent Chromium (CrVI), using dedicated methods (like OSHA Method ID-215) to comply with the specific OSHA CrVI Standard (29 CFR 1910.1026).

Indoor Air Quality (IAQ)

Comprehensive IAQ surveys combining real-time sensors and laboratory analyses to measure CO₂, PM₂.₅/PM₁₀, TVOCs, formaldehyde, temperature, and humidity. Ideal for offices, schools, and healthcare facilities to diagnose complaints, verify ventilation, and optimize occupant health.

Noise & Heat Stress Screening

Preliminary noise dosimetry and WBGT heat stress screenings to identify high-risk tasks and zones. We provide rapid field surveys, exposure mapping, and recommendations for hearing conservation, administrative controls, and heat stress mitigation strategies.

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Trusted by Industry Leaders

We partner with companies committed to safety and excellence — relying on our industrial hygiene testing expertise to maintain compliance and worker well-being.

Industries We Serve

Providing specialized industrial hygiene testing and safety solutions across diverse sectors

Manufacturing & Production

Noise surveys, air quality monitoring (welding fumes, solvents), and ergonomics assessments for assembly lines and fabrication plants.

Construction

Silica dust monitoring, asbestos and lead management, heat stress assessments, and confined space safety programsthrough certified industrial hygiene testing.

Healthcare & Laboratories

Exposure assessments for chemicals, anesthetic gases, sterilization agents, and indoor air quality in facilities.

Energy & Utilities

Hydrocarbon and chemical exposure monitoring, heat/cold stress, and noise control programs for power generation sites.

Government & Municipal

Indoor air quality investigations in offices and schools, hazard communication training, and water quality testing.

Food & Beverage

Noise surveys in processing areas, exposure monitoring for cleaning chemicals, and allergen dust control assessments.

Frequently Asked Questions

Here are some common questions about our services.

AGT Labs’ main office is located at:

10200 East Freeway, Suite 100, Houston, TX 77029

We also operate service centers in Harlingen and the South Texas region.

Day	Business Hours
Monday – Friday	7:00 AM to 6:00 PM (CST)
Saturday	Closed
Sunday	Closed

Emergency & After-Hours Testing: For urgent testing outside of standard hours or during holidays, please contact us at 713-453-6090.

Yes. You can coordinate sample pickup or courier delivery through your Project Manager by calling (713) 453-6090 or emailing info@agtlabs.com.

Service areas include Houston and nearby areas, Bay City, Freeport, Lake Jackson, Victoria, and areas near the Harlingen facility.

Most standard analyses are completed within seven or more business days.
Expedited services are available for an additional fee, and turnaround times are clearly stated in each estimate.

Rush processing is available for expedited results. The following surcharges apply:

1 Business Day – 100% surcharge
2 Business Days – 75% surcharge
3 Business Days – 50% surcharge
4 Business Days – 25% surcharge

Note:

• If asbestos samples are unusable, additional preparation fees may apply.
• For bulk PLM testing, separate layers are billed individually.

Absolutely. With at least five business days’ notice, AGT Labs provides outbound shipping—typically via UPS Ground or other cost-effective options.

Note: Clients are responsible for any international shipping fees.

Yes. With a minimum of five business days’ notice, AGT Labs can supply the required sampling media (additional charges may apply).
Kits may include:

Filters
Sorbent tubes
Custody documentation
Return labels

Additional materials such as pumps and specialized equipment are also available for an added fee.

Get in Touch With Us

Your opinion matters. We would like to hear from you.

Contact us today to learn more about our industrial hygiene testing programs and how we can help ensure a safer, compliant workplace.