What pathogens do you test for in swabs?

Targeted screening for Listeria monocytogenes, Salmonella spp., Escherichia coli O157:H7, Staphylococcus aureus, Pseudomonas aeruginosa, and broad-spectrum indicators like total aerobic plate count and yeast/mold. Custom panels available on request.

What is ATP bioburden testing?

ATP (adenosine triphosphate) swabs measure live microbial contamination in seconds on contact surfaces. AATLS provides ATP testing for sanitation validation, with reference-method confirmation plating for regulatory submissions.

Who needs environmental swab screening?

Food and beverage manufacturers (FSMA / HACCP environmental monitoring programs), medical device reprocessing departments, cosmetic plants, cleanrooms (ISO 14644 classified), and pharmaceutical production facilities.

Presumptive ATP and broad screening: 24-48 hours. Targeted pathogen culture (Listeria, Salmonella): 48-96 hours depending on enrichment requirements. Rush and weekend processing available.

Environmental Swab Screening | Surface Contamination Testing

Why is Environmental Swabbing Important?
Microbes can live on all surfaces, and since we can’t see them, they can sneak into cannabis and hemp plants and products without us even knowing. Swabbing allows us to do “cleaning verification” before problems arise, so we can make sure that we are sanitizing prep areas and equipment properly.

Surfaces and equipment used in the preparation, manufacturing, and packaging of products can be full of contaminants. Swabbing the areas your product touches during its lifecycle can prevent failed batches down the road. It can also identify risky areas that need to be addressed. Our team will swab any surface a plant or product will touch—tabletops and prep surfaces, fans, equipment, ventilation systems and vents, racks, shelving, etc.

OUR TESTING METHOD!
We use highly sensitive PCR (polymerase chain reaction) technology to detect the presence of contaminants at a genetic level.

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Comprehensive environmental screening and analysis services.

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Environmental Swab Screening — 2026 FSMA and HACCP

Reviewed for accuracy: June 2026. The FDA FSMA Environmental Monitoring requirements continue to drive surface-swab screening in food, cosmetic, and pharmaceutical manufacturing in 2026. Listeria and Salmonella positive-release programs remain the most common environmental-monitoring triggers for FDA inspectors.

AATLS performs ISO/IEC 17025 accredited environmental swab screening: Listeria monocytogenes, Salmonella, E. coli O157:H7, Staph, Pseudomonas, ATP bioburden, and broad microbial counts. Rush and weekend processing available for product-release timelines.

Call (928) 985-9399 for sampling-plan design, positive-release investigations, or routine monitoring contracts.