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Upcoming holiday closures 

Quest Patient Service Centers will be closed on Friday, July 3 and Saturday, July 4, 2026, in observance of Independence Day, and to give our frontline team the time to recharge. Don't let the holiday interrupt your care. Plan your visit today.

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Quest Diagnostics

Environmental toxicology

A broad selection of testing for environmental toxicology

Certain chemicals do not break down easily in the environment and may create health risks. Starting with testing, Quest Diagnostics provides innovative environmental toxicology solutions, services, and resources to help you and your patients better understand their risks due to environmental factors.

Advanced diagnostics expertise, with a comprehensive test menu

Data, technology, and programs to support and evaluate population health strategies

Multiple, proven lab relationship strategies

PFAS, commonly referred to as “forever chemicals,” are man-made chemicals that have been used in industry and consumer products since the 1940s.1

People are most likely exposed to these chemicals by consuming PFAS-contaminated water or food, using products made with PFAS, or breathing contaminated air.

Learn more

Listen to our new podcast—PFAS: Understanding the risks and the role of testing

Listen now

References

  1. Perkins T. Chemical companies’ PFAS payouts are huge—but the problem is even bigger. The Guardian. August 2, 2023. Accessed May 28, 2025. https://www.theguardian.com/environment/2023/aug/03/chemical-companies-pfas-payouts-forever-chemicals

Forever chemicals: Their health impact and the benefits of blood testing

Download our white paper and take a deeper dive into the prevalence of PFAS, the associated health problems, and using PFAS blood testing to detect risk.

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About our tests

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.