Same-Day Industrial Hygiene Testing in Houston, TX — Walk-In Drop-Off & Local Pickup
Skip the courier wait: same-day courier pickup and walk-in drop-off across the Houston metro, with samples in before 2:00 PM CST logged same day — benzene, H₂S, welding fume, silica, mold and Legionella analyzed in-house at our own accredited lab. Outside Houston? We also run nationwide ship-in testing from anywhere in the U.S. For our full service menu and accreditation overview, visit the AGT Labs homepage.
Houston's Own Accredited IH Lab
Zero-Transit Home Lab
No overnight courier lag — same-day pickup and walk-in drop-off, since your samples never leave the city.
Accredited & Defensible
AIHA-LAP, NVLAP, PJLA, TX DSHS and TDLR — results that hold up with OSHA, insurers and Texas regulators.
Broadest Local Scope
From Ship Channel refining to Med Center indoor air quality — the full analyte menu, run in-house.
1-Day Rush
Rush to 1 business day and same-day log-in for arrivals before 2 PM CST keeps compliance on schedule.
Exposure Monitoring From Houston's Home-Base Lab
Houston is home to one of the largest petrochemical complexes in the world along the Ship Channel, the Port of Houston, a fast-growing construction market, and the Texas Medical Center. AGT Labs is based right here — our accredited laboratory analyzes benzene, H₂S, welding fume, silica, lead, asbestos and mold in-house, with no shipping delay for local clients.
Whether it's routine compliance monitoring, a refinery shutdown, new construction, or an indoor air quality assessment, we support Houston-area employers and contractors with same-day logistics and defensible data. See our refinery IH testing, petrochemical turnaround and construction programs.
- Benzene / BTEX by NIOSH 1501 / OSHA 1028
- H₂S and reactive gases by ion chromatography
- Welding fume, metals and hexavalent chromium
- Respirable crystalline silica by XRD; lead by NIOSH 7300
- Asbestos (NVLAP bulk PLM; PJLA PLM/PCM) and mold (TX TDLR LAB1070 / AIHA-EMLAP)
- Same-day courier pickup and walk-in drop-off — no overnight transit
Who does what: AGT Labs is an analytical laboratory — your team or your consultant collects the samples. Being local changes the logistics, not the service: our courier picks up sealed samples the same day, or you drop them at the lab. We do not run site surveys or field sampling.
Who We Serve in the Houston Area
Houston concentrates refining, petrochemicals, maritime trade, construction and healthcare — exactly where accredited exposure data matters most.
Ship Channel Refining & Petrochemical
Benzene, H₂S, PAH, catalyst metals and turnaround monitoring, plus Legionella culture on cooling tower water.
Port of Houston & Maritime
Terminal, dock and marine fabrication work — welding fume, hex chrome, silica and lead.
Construction & Development
Commercial and industrial build-out across the metro — silica, lead, asbestos and mold.
Manufacturing & Warehousing
Metal fabrication, distribution centers and general industry needing routine compliance data.
Healthcare & Medical Center
Indoor air quality and mold assessments for hospitals, clinics and medical office buildings.
Facilities & Commercial
Indoor air quality and mold assessments for offices, warehouses and public buildings.
What We Analyze for Houston Clients
Every analyte below is run in-house under accreditation. Tap any card for the full method detail.
Respirable Silica & Lead
XRD silica and NIOSH 7300 lead for construction and blasting work.
View Service →Legionella in Cooling Water
ISO 11731 culture for cooling towers, potable and hot water. CDC ELITE member lab.
View Service →Asbestos & Mold
NVLAP (bulk PLM) & PJLA (PLM/PCM) asbestos; TX TDLR (LAB1070) / AIHA-EMLAP mold.
View Service →Houston Analytes & OSHA Exposure Limits
The regulated limits your monitoring program is measured against, and the method our lab runs for each.
| Hazard | OSHA PEL (8-hr TWA) | Lab Method | Sample Type |
|---|---|---|---|
| Benzene | 1 ppm (STEL 5 ppm) | NIOSH 1501 / OSHA 1028 | Charcoal tube, personal |
| Hydrogen sulfide (H₂S) | 20 ppm ceiling (ACGIH TLV 1 ppm) | Ion chromatography | Treated filter / bubbler |
| Hexavalent chromium | 5 µg/m³ | OSHA ID-215 | PVC filter, personal |
| Respirable crystalline silica | 50 µg/m³ | XRD (NIOSH 7500 / OSHA ID-142) | Cyclone + PVC filter |
| Lead | 50 µg/m³ (AL 30 µg/m³) | NIOSH 7300 / 7082 | MCE filter, personal |
| Asbestos | 0.1 f/cc | PCM (NIOSH 7400) / PLM | MCE filter / bulk |
Coverage Across Greater Houston
Same-day courier pickup and walk-in drop-off across the metro, with same-day log-in on receipt. Outside Houston, we also run nationwide ship-in testing from anywhere in the U.S.
Lab: 10200 East Freeway, Suite 101, Houston TX 77029 · Same-day courier pickup and walk-in drop-off across Houston; overnight courier or ship-in for clients further down the Gulf Coast.
Industrial Hygiene in Houston & the Ship Channel
What Houston's refining, port and construction economy means for your exposure monitoring.
The Houston Ship Channel is one of the largest petrochemical complexes in the world, home to major refineries and chemical plants alongside the Port of Houston — the busiest port in the U.S. by tonnage. That density keeps benzene, hydrogen sulfide and BTEX central to exposure monitoring across the corridor, while turnaround and maintenance work adds fugitive VOC exposure. Houston's ongoing construction boom and manufacturing base layer on welding fume, manganese, hexavalent chromium and silica — all analyzed in-house at AGT. Large industrial and commercial cooling-water systems across the metro, including high-rise office towers and the Texas Medical Center, are a recognised source of Legionella aerosol per CDC, so Legionella culture belongs in the same water management programme as the air panel.
Work here answers to TCEQ's Houston regional office and Harris County, alongside OSHA, and marine-terminal work along the Ship Channel and at the Port falls under OSHA's maritime standards rather than general industry. Pre-1981 demolition and renovation also trigger Texas DSHS asbestos survey and notification requirements. Because our lab is in the city, Houston clients skip the courier lag entirely — same-day pickup or walk-in drop-off means a turnaround, a permit deadline or a mold complaint isn't held up waiting on data. For sector-specific coverage, pair this page with our refinery IH, petrochemical turnaround and construction programs.
Houston IH Testing — FAQ
Is your accredited lab based in Houston?
Do you only serve Houston, or can you help clients elsewhere?
What industries do you serve in the Houston area?
How fast is turnaround for Houston-based clients?
Are you accredited for defensible exposure and mold results in Texas?
Can you support a Houston Ship Channel refinery or petrochemical turnaround?
Do you offer same-day pickup or walk-in drop-off at your Houston lab?
Request a Quote for Houston IH Testing
AIHA-LAP accredited · benzene · H₂S · welding fume · silica · lead · asbestos · mold · same-day pickup · 1-day rush — Houston's own accredited IH lab.