About URG


URG Corporation is a family owned business that has been designing and fabricating air sampling instrumentation for over 35 years. We are internationally recognized experts in the industry and take pride in our business. URG is composed of a highly qualified, dedicated staff with years of experience. Our sampler line includes a series of realtime and manual systems.

Our realtime system, the Ambient Ion Monitor (AIM) allows for continuous measurements of particle sulfate, nitrate, ammonium, chloride, potassium, magnesium, calcium and sodium. At the same time, the AIM provides time-resolved gas measurements of sulfur-dioxide, nitric acid and ammonia.

Our manual systems include the Annular Denuder System (Acidic and Basic Gases), Dual Sequential Fine Particulate Sampler (Aerosols, SVOCs, and Mass), Medium Volume Particulate Sampler (PM 2.5 and PM10 simultaneously), Mercury Sampling System (Reactive Gas and Particulate Mercury), Semi-Volatile Organic Aerosol Sampler (SVOCs), URG-3000N Carbon Sampler (Organic and Elemental Carbon), Versatile Air Pollutant Sampler (Coarse and Fine 2.5µm and 10µm Particles), and Weekly Air Particulate Sampler (Aerosols, SVOCs, and Mass). Click on the sampler name to learn more.


Motto: Better Air. Better Lives.


Why Choose Us


EPA Approvals

With an in-house research & development team as well as an engineering department, we are always at the forefront of air sampling technology. URG works closely with the US EPA to ensure that our products and sampling systems are designed to the highest standards.

ISO 9001:2015 Certified

URG Corporation is committed to producing quality products that are accurate, reliable and durable. We are committed to customer satisfaction through continuous innovation.


URG develops strong partnerships with our clients to address and solve ambient air measurement problems so that together we can share in the preservation of the world's health. We meet our customer’s needs through innovation and engineered excellence.

Made in the USA

Located in Chapel Hill, North Carolina, all of our products and sampler systems are fabricated in the United States.

Philanthropic Contributions

URG believes in giving back. Yearly donations are made to the Crohn’s & Colitis Foundation, Doctors Without Borders, and to our local Salvation Army and Habitat for Humanity offices.