Ozone is often used to fumigate fruit and vegetables, to reduce occurrence of pathogens that can cause food-borne illnesses. This study used the Model 106-MH to monitor ozone administered to grape tomatoes to inactivate Salmonella, yeasts, and molds. Although the treatments reduced Salmonella and native microbiota populations, there were tradeoffs in various quality measures and nutrient content of the tomatoes.
In this study, a new method of cleaning the cabins of passenger airplanes was studied. High ozone was pumped into the aircraft’s air conditioning system. The 0-100 ppm range of the Model 106-L enabled researchers to monitor the fumigation levels of the ozone as well as the fallback to safe levels. Hospital-grade sterilization was achieved in about 90 minutes of treatment, with the added benefit of the ability of ozone to penetrate the hard-to-reach places on the plane, such as tray tables in the locked & upright position.
In Atlanta, Georgia, the AQEarth team includes Community Health Aligning Revitalization Resilience & Sustainability (CHARRS) and West Atlanta Watershed Alliance (WAWA) in a project consisting of both air monitoring and community education. The collective aim is to bring community members together around air quality issues in West Atlanta neighborhoods. 2B Tech’s AQSync was installed to make high-quality measurements of pollutants that are accessible to residents online. Residents of all ages are exploring local air quality in neighborhoods using handheld personal air monitors (PAMs).
Researchers at the University of São Paulo are studying the use of ozone as a more environmentally sound method for modifying the properties of starch. Industrial sectors that use starch include food, petrochemical, adhesives, paints, and others. This study applied high ozone and used the Model 106-H Ozone Monitor to follow the inlet and outlet concentrations of a reactor containing the starch. The study identified several techniques for optimizing starch properties.
Products: Black Carbon Photometer, Model 405 nm, POM
Category: Ambient Ozone Monitor, Other Monitor
Application: Communities, Research
Our instruments went out for a spin when researchers at the University of Texas loaded up the back of a hatchback for a study of the physiological effects of air pollution. The study was published in 2022 in the journal Sensors. Included were three instruments from 2B Tech to measure O3, NO2, NO, and black carbon. A tantalizing finding from the study: the biometric measurements themselves were in some cases good “detectors” of particulate matter (PM) pollution.
Category: Ambient Ozone Monitor, Multi-Pollutant System
Application: Ambient Air, Government, Research
This study used 2B Tech instruments to evaluate the performance of CO2 sensors. The multiple measurements offered by our Personal Air Monitor, AQLite, and AQSync open the door for verifying the performance of lower-cost sensor technology.
The Model 108-L has been integrated into the STERISAFE PRO system, which uses fumigations with high amounts of gas-phase ozone to disinfect surfaces and destroy viruses and bacteria. The integrated relay and the wide measurement range of the Model 108-L (0-100 ppm) make it possible for one instrument to serve two purposes critical to the disinfection process: monitoring the high ozone concentrations needed to ensure disinfection, and also monitoring low ozone concentrations to determine when safe levels are re-established at the end of fumigation.
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 Northern Chesapeake Bay experiences higher ozone than the rest of Maryland, and in fact accounts for most of the ozone exceedances in the entire state. In this 2016/2017 study, the Model 202 was deployed on on Hart Miller Island about 22 km east of downtown Baltimore and 5 km offshore. Maryland Department of the Environment compared the 202’s FEM ozone measurements with FEM/FRM ozone analyzers at other sites in Maryland.
The Model 306 Ozone Calibration Source provided the ozone for a study of the adverse effect of elevated ozone on skin physiology. A correlation has been established between ozone exposure and skin conditions such as atopic dermatitis, psoriasis, acne, and eczema.
The Middle East is a hot spot for air pollution, owing to urbanization, industrialization, high emissions from petrochemical industries, and the intense solar radiation and high temperatures of the region. The Model 202 was used aboard a research vessel that sailed around the Arabian Peninsula gathering data. The 202’s DewLine Nafion tube and Teflon filter helped to minimize potential interferences from water vapor and particles.
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.
The Model 205 Ozone Monitor took a ride on Salt Lake City’s public transit light-rail train cars in the city’s efforts to map pollution in the Great Salt Lake Ozone Study. High NOx emissions near roadways led to the counterintuitive results of this study.
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.
This research investigated how the wavelengths of light emitted by mercury lamps affects radical generation and chemistry in an oxidation flow reactor. Different types of lamps were designed and tested, and the Model 106-M Ozone Monitor measured the ozone concentration at the exit of the flow reactor. Empirical estimation equations could be used to predict the hydroxyl radical production, a much simpler approach than using photochemical models.