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Aerosol Device Articles & Analysis
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OPERA-S5 (OPEn platform for the Retrieval of Aerosol and CO2 from S5) includes two main objectives: the development of Open-Source Community Full-Physics XCO2 Retrieval Algorithm for Sentinel 5, and the demonstration of the developed algorithm by investigating the uncertainty characterization of CO2 and CH4 retrievals in the context of the challenging CO2M requirements using the proxy combination ...
Aerosol Devices’ Braden Stump recently recorded a webinar to be able to provide a reference to people looking to learn more about condensation growth tube technology and Aerosol Devices’ line of products. ...
Highlights Viable Delta Variant SARS-CoV-2 collected from air samples in a residential environment. SARS-CoV-2 detected in an area of a single-family dwelling distant from an isolation suite occupied by COVID-19 patient. Assessment of air samples and surface swab samples by rRT-qPCR and cell culture for SARS-CoV-2. Employment of air samplers functioning based on different collection ...
In our previous blog, we learned about ways to mitigate particle losses in transport tubing from the sampling inlet near a critical point in a process, to the particle counter. Here we’ll learn about the ways in which some losses are there to stay. ...
Aerosol Devices is pleased to partner with XEarPro, our exclusive Italian distributor, and bring renowned experts together in one complimentary 2 hour symposium, dedicated to the sampling and analysis of biological airborne particles. ...
As we reach our one year anniversary of COVID-19 (or pass it, depending on who’s tracking it), aerosol researchers are still working to convince the world that SARs-CoV-2 is transmitted largely through the air. This is the largest list of eminent experts (363) from around the world, requesting the Canadian officials take the overwhelming evidence seriously and suggest seven key activities ...
The Centers for Disease Control and Prevention now says COVID-19 can be spread through airborne transmission according to updated guidance on the agency’s website. The update to their guidance explains airborne transmission and likens its risk of airborne infection to that of tuberculosis, measles and the chicken pox. This comes after a mishap 2 weeks ago when guidance was published, then ...
John Lednicky, Research Professor at Environmental and Global Health, University of Florida and his research team, found infectious virus can spread through the air- up to 16 feet away from an infected patient – through aerosols. Per the paper, published on August 12th, 2020, this experiment was performed using the Aerosol Devices ...
Last week our University of Colorado Boulder research collaborators were featured in the news using our BioSpot-VIVIAS sampler. Mark Hernandez, who directs the Environmental Engineering Microbiology and Disinfection Lab at the University of Colorado, and his team are researching to find ways to disinfect the air and surfaces to kill COVID-19 in inclosed spaces. To see video, please click here ...
But Axisa and his team had an advantage: a specialized, SBIR-funded instrument that can accurately measure not only the size of particles within a cloud but their shapes (important for discriminating between water and ice), as well as water content and atmospheric pressure and temperature. Named CAPS (Cloud, Aerosol and Precipitation Spectrometer), the measurement ...
In this paper we calculate the Signal-to-Noise (SNR) ratio of a 3-channel commercial volcanic ash detection system, (Raymetrics lidar model LR111-D300), already in operation for the Met Office organization. The methodology for the accurate estimation is presented for day and nighttime conditions. The results show that SNR values are higher than 10 for ranges up to 13 km for both nighttime and ...
Waves breaking and bubbles popping at the Earth’s surface eject seawater droplets into the atmosphere 10’s of nanometers to 100’s of micrometers in diameter, called sea spray aerosol (SSA). These aerosols are tiny subsamples of the ocean’s surface, and the ocean has high numbers of heterotrophic bacteria, more than a million per milliliter, in addition to phytoplankton, ...
Direct Sampling and Analysis of Atmospheric Particulate Organic Matter An international team of researchers from the University of Innsbruck (Austria), the IRCELYON in Lyon (France) and the University of Oslo (Norway) recently studied the application of the new CHARON Particle Inlet to directly sample and analyze the chemical composition of atmospheric sub-µm particulate organic matter ...
Each iteration of the sensor provides a clearer “picture,” in much the same way that today’s ultra-high-definition televisions build on many years of technology development. The original analog CRT devices were severely limited in resolution, color and sharpness, compared to modern digital televisions that offer faster processes, extremely high resolution, and ...
Aerosol Sampling. Science, Standards, Instrumentation and Applications, by James H. Vincent. New York, John Wiley and Sons, 2007. 636pp. ISBN: 978-0-470-02725-7Keywords: book ...
The gaseous and nonvolatile particulate matter (PM) emissions of two T56-A-15 turboprop engines of a C-130H aircraft stationed at the 123rd Airlift Wing in the Kentucky Air National Guard were characterized. The emissions campaign supports the Strategic Environmental Research and Development Program (SERDP) project WP-1401 to determine emissions factors from military aircraft. The purpose of ...
SCOPE OF EFFORT The source of the contamination is often identified as a dust or powder or similar substance capable of being aerosolized. In some cases, environmental sampling and analysis identifies one or more specific areas of contamination, without identification of an initial source material. ...