2B Tech’s highly portable ozone monitors are Federal Equivalent Methods (FEM) for ozone, and they have long been used for ambient air monitoring applications. Because of their low power requirements, compact size, and low weight, 2B Tech ambient ozone instruments and packages are widely used in remote locations and on platforms where deployment of conventional air monitoring instruments is not possible.
2B Tech’s highly portable ozone monitors are Federal Equivalent Methods (FEM) for ozone, and they have long been used for ambient air monitoring applications. Because of their low power requirements, compact size, and low weight, 2B Tech ambient ozone instruments and packages are widely used in remote locations and on platforms where deployment of conventional air monitoring instruments is not possible.
2B Tech’s ozone monitors measure ozone in air using the well-established technique of UV absorbance at 254 nanometers. Ozone is measured by comparing the transmission of light through a detection cell with ozone present, and with ozone removed. The ozone concentration is calculated using the Beer-Lambert Law.
Single-beam models include the 106-L, 202, and POM, while the Model 205, 211, and 211-G are dual-beam ozone instruments that offer the quickest response time and highest precision and baseline stability.
Our monitors incorporate a unique feature of 2B Tech instruments, the DewLineTM, for elimination of water vapor interferences. All of our ozone monitors use Hopcalite scrubbers to provide the ozone-free measurement needed for the Beer’s Law calculation of ozone concentration, except for the Model 211 and 211-G which use novel scrubbing methods that provide “interference-free” measurements in highly polluted environments where non-ozone UV absorbing substances could interfere.
Researchers used the 2B Tech Model 405 nm NO2/NO/NOx Monitor and the Model 106-L Ozone Monitor to look at the chemistry of a widespread heavy-haze event in Beijing that lasted several days. The measurements were conducted using a moving cabin on a tower platform.
In this study, the 2B Tech Personal Ozone Monitor (POM) was flown on a drone above Chesapeake Bay, to investigate the chemistry inside the plume of a large freighter at sea. The versatility of the POM was showcased in this work, which also made use of another POM to make complementary measurements at a ground station nearby.
The Model 211 was used to make ozone measurements in Logan, Utah, during the the 2017 Utah Winter Fine Particle Study. Low ozone concentrations characteristic of wintertime combined with potential positive interferences from VOCs made having interference-free ozone measurements of the Model 211 crucial toward gaining an understanding of ozone behavior in the Cache Valley.
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2B Tech has adapted our AQLite Basic Air Monitoring Package and made it compatible with Clarity’s nodes. It has never been easier to make FEM-quality ozone measurements in remote locations while being able to access the data from anywhere in the world.
Several of 2B Tech’s portable air monitoring instruments have recently been featured in the press as part of an effort to raise awareness to growing air quality concerns.
