OVERVIEW

With Indoor Air Quality identified as a risk to public health, UL is advancing new testing methods, new insights and new equipment that are helping minimize its adverse effects. We are researching the effects of flame retardants on the environment and creating advances in environmental chambers that enable equipment of all sizes to be tested for chemical emissions. UL is also innovating ways to measure toxicity of both volatile organic compounds and semi-volatile organic compounds. Specifically, our work with phthalates resulted in the creation of a first-of-its-kind technique involving the collection of indoor air in specialized sorbent tubes, followed by gas chromatography mass spectrometry analysis.

WHAT'S NEW
IMPACT OF PAINT
ON SCHOOL AIR

Learn about the results of
two innovative classroom
studies, conducted by UL related
to Indoor Air Quality.

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MULTIMEDIA

Indoor Air Quality Infographic 1

EXPERTS

Marilyn S. Black, Ph.D., and LEED AP
President and Founder, UL AQS

Dr. Marilyn Black is a global expert on Indoor Air Quality and product emissions. She founded the GREENGUARD Certification programs for the selection of environmentally preferred, low-emitting products and has directed several studies on indoor air pollution and its effects on human health, sustainable buildings and environments. Dr. Black holds a doctorate, master's degree and bachelor's degree in chemistry and environmental health. She is also a LEED Accredited Professional and a William Henry Merrill Fellow and sits on numerous national and international committees serving to protect human health.

“UL provides unique solutions in today's complex environment and is uniquely developing technologies to address rapidly changing societal, environmental and health needs.”

— Marilyn S. Black

Anthony G. Worthan, MPH
Vice President and Chief Operating Officer

Anthony “Tony” Worthan is an authority on emissions and human health. He holds a master's in public health in environmental and occupational health from Emory University and a management development postgraduate degree from Harvard Business School. Mr. Worthan has served on numerous committees focused on protecting public health, including the Indoor Environmental Quality Committee and the Tuberculosis Task Force of the AIHA.

Elliott Horner, Ph.D., LEED AP and FAAAAI
Principal Scientist

Dr. Elliott Horner is broadly recognized as an expert on fungal allergens. He received his Ph.D. from Virginia Polytechnic Institute and State University in Mycology/Plant Pathology. Dr. Horner has written numerous peer-reviewed research papers and book chapters and has served on committees for ASTM International, the International Society of Indoor Air Quality and Climate, the American Academy of Allergy, Asthma and Immunology, and the American Industrial Hygiene Association. He is a member of the American Society for Microbiology and Mycological Society of America and a Fellow of the AAAAI.

UL has developed more than 1,000 Standards. Thousands of products and their components are tested to our rigorous requirements every year.
UL 2820
GREENGUARD Certification Program for Chemical Emissions for Cleaners and Cleaning Maintenance Systems
UL 2821
GREENGUARD Certification Program Method for Measuring and Evaluating Chemical Emissions From...
UL 2822
GREENGUARD Certification Program Method for Measuring and Evaluating Chemical Emissions From...
UL 2823
GREENGUARD Certification Program Method for Measuring and Evaluating Chemical and Particle Emissions...
UL 2824
GREENGUARD Certification Program Method For Measuring Microbial Resistance From Various Sources Using...

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