Current Aerosols News and Events | Page 2

Current Aerosols News and Events, Aerosols News Articles.
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NASA's Terra highlights aerosols from western fires in danger zone
The year 2020 will be remembered for being a very trying year and western wildfires have just added to the year's woes. (2020-09-10)

Multiphase buffering by ammonia explains wide range of atmospheric aerosol acidity
Anthropogenic ammonia emissions and the water content matter more than dry particle composition for the acidity of atmospheric aerosols in populated regions. (2020-09-10)

NOAA-NASA Suomi NPP captures fires and aerosols across America
On Sep. 07, 2020, NOAA/NASA's Suomi NPP satellite provided two different views of how fires are affecting the US. (2020-09-08)

Could singing spread COVID-19?
If silence is golden, speech is silver - and singing the worst. Singing doesn't need to be silenced, however, but at the moment the wisest thing is to sing with social distancing in place. The advice comes from aerosol researchers at Lund University in Sweden. They have studied the amount of particles we actually emit when we sing - and by extension - if we contribute to the increased spread of Covid-19 by singing. (2020-09-07)

It takes more than plexiglass to protect against aerosolized SARS-CoV-2
The FDA just revoked their EUA for intubation boxes - plastic shields that supposedly protect health care workers from becoming infected with SARS-CoV-2 - due to concerns over aerosol leaks. This study describes a better box, with negative pressure and filtration, that contains airborne virus. (2020-09-03)

NOAA/NASA's Suomi NPP satellite shows two views of California's smoky skies
NOAA/NASA's Suomi NPP satellite captured two images that tell the story about the smoke coming off the fires in California. One instrument on the provided a visible image of the smoke, while another analyzed the aerosol content within. The images were captured on August 30, 2020. (2020-08-31)

First in situ radiation measurements 21 km up into the air over Tibetan Plateau
In situ vertical radiation measurements from the surface up to the upper troposphere and lower stratosphere (UTLS), about 10~22 km in altitude, are rare over the TP or even over a large territory of China. The Institute of Atmospheric Physics of the Chinese Academy of Sciences (CAS), in collaboration with the Aerospace Information Research Institute of CAS, developed a balloon-based measurement system to measure stratospheric radiation. (2020-08-27)

A chiral surprise in the rainforest
Reversed ratio of chiral volatile organic compounds over the Amazon rainforest reveal insects as unexplored important source of forest emissions. (2020-08-27)

NASA sees typhoon Bavi from one million miles away
Typhoon Bavi is a large storm moving through the Yellow Sea. A NASA camera captured an image of the Northwestern Pacific Ocean that showed Bavi headed north. (2020-08-26)

NASA's Terra Satellite shows smoky pall over most of California
More than 650 wildfires are blazing in California after unprecedented lightning strikes, storms, and a heatwave that has set new records in the state and NASA's Terra satellite captured the smoke-engulfed state on Aug. 24, 2020. (2020-08-24)

Coronavirus SARS-CoV-2 spreads more indoors at low humidity
The airborne transmission of the coronavirus SARS-CoV-2 via aerosol particles in indoor environment seems to be strongly influenced by relative humidity, concludes the analysis of 10 most relevant international studies on the subject. Therefore, they recommend controlling the indoor air in addition to the usual measures such as social distancing and masks. A relative humidity of 40 to 60 percent could reduce the spread of the viruses and their absorption through the nasal mucous membrane. (2020-08-20)

Low humidity increases COVID risk; another reason to wear a mask
University of Sydney study confirms a link between COVID-19 cases and lower humidity. (2020-08-18)

Recent global warming trends are inconsistent with very high climate sensitivity
Research published this week in Earth System Dynamics reports that the most sensitive climate models overestimate global warming during the last 50 years. (2020-08-18)

Ocean microbes could interact with pollution to influence climate
Little is known about how gases and aerosols made by ocean microbes affect weather and climate, or how pollution could influence this process. Today, scientists report they've used an ''ocean-in-a-lab'' to show that air pollution can change the makeup of gases and aerosols that sea spray releases into the atmosphere, potentially altering weather patterns. The researchers will present their results today at the American Chemical Society Fall 2020 Virtual Meeting. (2020-08-17)

Culling cancer before it stems: A novel, rapid carcinogen detection method
Testing chemical compounds for their ability to cause cancer is one way in which scientists can identify hazardous chemicals and thereby protect public health. But, standard testing methods are usually complex and time-consuming. In a new paper published in Scientific Reports, scientists have described a novel testing method based on stem cells that may allow scientists to quickly assess large numbers of compounds for their carcinogenicity. (2020-08-05)

Pristine environments offer a window to our cloudy past
A new study uses satellite data over the Southern Hemisphere to understand global cloud composition during the industrial revolution. This research tackles one of the largest uncertainties in today's climate models -- the long-term effect of tiny atmospheric particles on climate change. (2020-07-27)

Study shows that aerosol box used to protect healthcare workers during COVID
A new study shows that certain aerosol boxes of a similar type to those that have been manufactured and used in hospitals in the UK and around the world in order to protect healthcare workers from COVID-19 can actually increase exposure to airborne particles that carry the virus, and thus casts doubt on their usefulness. (2020-07-10)

Study finds less impact from wildfire smoke on climate
New research revealed that tiny, sunlight-absorbing particles in wildfire smoke may have less impact on climate than widely hypothesized because reactions as the plume mixes with clean air reduce its absorbing power and climate-warming effect. (2020-07-09)

The best (and worst) materials for masks
It's intuitive and scientifically shown that wearing a face covering can help reduce the spread of the novel coronavirus that causes COVID-19. But not all masks are created equal, according to new University of Arizona-led research. (2020-07-08)

A chemical cocktail of air pollution in Beijing, China during COVID-19 outbreak
Air pollution during the COVID-19 lockdown in Beijing was mainly due to different chemical responses of primary and secondary aerosols to changes in anthropogenic emissions. (2020-07-07)

Iron in the Greenland ice core relative to Asian loess records over the past 110,000 years
Xiao and colleagues examined ''iron hypothesis'' evidences in Greenland NEEM ice core. The result showed that the iron (Fe) records were significantly anti-correlated with the carbon oxide (CO2) concentrations during cold periods over the past 110 kyr B.P. The severe anthropogenic contamination has no significant impacts on the bioavailable Fe deposition in the NEEM ice core. (2020-07-03)

Managing personal protective equipment in health care settings
An article in CMAJ (Canadian Medical Association Journal) provides an overview on personal protective equipment (PPE) in health care settings, including evidence on effectiveness of N95 masks, as well as the importance of including health care worker perspectives on usage of this equipment. http://www.cmaj.ca/lookup/doi/10.1503/cmaj.200575 (2020-06-25)

Far-UVC light safely kills airborne coronaviruses
A type of ultraviolet light called far-UVC -- which is safe to use around people -- kills more than 99.9% of airborne coronaviruses, a new study at Columbia University Irving Medical Center has found. (2020-06-24)

New article clarifies details of COVID-19 respiratory transmission
In a new article, scientists provide an exhaustive, evidence-based review of how COVID-19 droplets from infected patients spread through the air and describe how health care professionals can protect themselves. This Pulmonary Perspective is published online in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine. (2020-06-22)

Summer observation campaigns to study pollution in the Asian tropopause layer
Scientists find the aerosols in the boundary layer are mostly pollution out of human activities, and the aerosols in the upper troposphere may also contain natural aerosols, like mineral dust and volcanic sulfate aerosols, (2020-06-14)

Together they stay alive longer
Hamburg/Borstel/Leipzig. The tuberculosis pathogen Mycobacterium tuberculosis can protect itself better when combined and thus stay alive longer in the air. This was the result of a study by the Leibniz Research Alliance INFECTIONS, which was published in the scientific journal ''Scientific Reports'' on Monday. (2020-06-12)

Face masks critical in preventing spread of COVID-19
A study by a team of researchers led by a Texas A&M University professor has found that not wearing a face mask dramatically increases a person's chances of being infected by the COVID-19 virus. (2020-06-12)

Study: Reflecting sunlight to cool the planet will cause other global changes
Study finds reflecting sunlight to cool the planet will weaken extratropical storm tracks, causing other global changes. (2020-06-02)

COVID-19 could be a seasonal illness
A study conducted in Sydney, Australia, during the early epidemic stage of COVID-19 has found an association between lower humidity and an increase in locally acquired positive cases. Researchers discovered a 1 percent decrease in humidity could increase the number of COVID-19 cases by 6 percent. (2020-06-01)

Atmospheric scientists identify cleanest air on Earth in first-of-its-kind study
A research group at Colorado State University identified an atmospheric region unchanged by human-related activities in the first study to measure bioaerosol composition of the Southern Ocean south of 40 degrees south latitude. (2020-06-01)

A potential explanation for urban smog
The effect of nitric acid on aerosol particles in the atmosphere may offer an explanation for the smog seen engulfing cities on frosty days. (2020-05-27)

As businesses reopen, it's crucial we wear masks, safely distance
In a perspective piece published today in the journal Science, UC San Diego experts describe in detail the growing evidence that SARS-CoV-2, the novel coronavirus that causes COVID-19, can be spread by asymptomatic people via aerosols -- a reality that deeply underscores the ongoing importance of regular widespread testing, wearing masks and physical distancing to reduce the spread of the virus. (2020-05-27)

Masks reduce airborne transmission of SARS-CoV-2
Growing evidence suggests that SARS-CoV-2, the novel coronavirus that causes COVID-19, can be spread by asymptomatic people via aerosols -- a reality that deeply underscores the ongoing importance of regular widespread testing, wearing masks and physical distancing to reduce the spread of the virus, say Kimberly Prather and colleagues in a new Perspective. (2020-05-27)

Evidence shows cloth masks may help against COVID-19
The international research team examined a century of evidence including recent data, and found strong evidence showing that cloth and cloth masks can reduce contamination of air and surfaces. (2020-05-25)

Using wastewater to monitor COVID-19
A recent review paper from an international research group shows how wastewater could provide a useful tool for monitoring COVID-19 and highlights the further research needed to develop this as a viable method for tracking virus outbreaks. (2020-05-24)

Fire aerosols decrease global terrestrial ecosystem productivity through changing climate
Cooling, drying, and light attenuation are major impacts of fire aerosols on the global terrestrial ecosystem productivity. (2020-05-20)

Study finds breathing and talking contribute to COVID-19 spread
Current knowledge about the role of aerosols in the transmission of SARS-CoV-2 warrants urgent attention. Current guidance and public health information has slowly shifted focus towards aerosols as a transmission pathway - predominantly associated with breathing and talking by asymptomatic individuals. (2020-05-07)

Study: Climate change has been influencing where tropical cyclones rage
While the global average number of tropical cyclones each year has not budged from 86 over the last four decades, climate change has been influencing the locations of where these deadly storms occur, according to new NOAA-led research published in Proceedings of the National Academy of Science. (2020-05-04)

New understanding of asthma medicines could improve future treatment
New research has revealed new insights into common asthma aerosol treatments to aid the drug's future improvements which could benefit hundreds of millions of global sufferers. (2020-04-27)

The best material for homemade face masks may be a combination of two fabrics
In the wake of the COVID-19 pandemic, the US Centers for Disease Control and Prevention recommends that people wear masks in public. Because N95 and surgical masks are scarce and should be reserved for health care workers, many people are making their own coverings. Now, researchers report in ACS Nano that a combination of cotton with natural silk or chiffon can effectively filter out aerosol particles -- if the fit is good. (2020-04-24)

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