Popular Aerosols News and Current Events

Popular Aerosols News and Current Events, Aerosols News Articles.
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Invisible gases form most organic haze in urban, rural areas
A new study involving the University of Colorado at Boulder shows that invisible, reactive gases hovering over Earth's surface, not direct emissions of particulates, form the bulk of organic haze in both urban and rural areas around the world. (2007-07-09)

NASA leverages proven technologies to build agency's first planetary wind lidar
NASA scientists have found a way to adapt a handful of recently developed technologies to build a new instrument that could give them what they have yet to obtain: never-before-revealed details about the winds on Mars and ultimately Titan, Saturn's largest moon. (2018-02-08)

Toxicant levels up to 99 percent less in myblu™ aerosols compared to cigarette smoke
A new aerosol chemistry study presented at the 1st Scientific Summit -- Tobacco Harm Reduction: Novel products, Research & Policy, has revealed toxicant levels in myblu pod-system e-cigarette aerosols are up to 99 percent lower than in cigarette smoke. (2018-06-11)

Death by volcano?
he discovery of anomalously high levels of mercury in rocks from the Ordivician geological period has led to a new interpretation of the ensuing mass extinction. A sequence of disturbances may have led to catastrophic cooling by reflective sulfate aerosols injected into the atmosphere by massive volcanism. The finding is important since aerosol cooling is under consideration as a way to temper global warming. (2017-05-29)

Seismic images show dinosaur-killing meteor made bigger splash
The most detailed 3-D seismic images yet of the Chicxulub impact crater may modify a theory explaining the (2008-01-23)

NASA satellite measures pollution from east Asia to North America
In a new NASA study, researchers taking advantage of improvements in satellite sensor capabilities offer the first measurement-based estimate of the amount of pollution from East Asian forest fires, urban exhaust and industrial production that makes its way to western North America. (2008-03-17)

Human activities worsen air quality in Dunhuang, a desert basin in China
Due to the increasing contribution of human activities, air quality has become worse in the most recent decade over the Dunhuang area, and the main reason is a shift to a mixture of coarse and fine particles, having previously been due to dust aerosol alone. (2017-06-29)

Scientists accurately model the action of aerosols on clouds
Global climate is a tremendously complex phenomenon, and researchers are making painstaking progress, year by year, to try to develop ever more accurate models. Now, an international group including researchers from the Advanced Institute for Computational Science (AICS) in Japan, using the powerful K computer, have for the first time accurately calculated the effects of aerosols on clouds in a climate model. (2018-03-08)

Jelawat not seen as a threat to the Philippines
Tropical Depression Jelawat, a newly formed tropical cyclone over Western Micronesia is expected to strengthen into a Tropical Storm and enter the southeastern border of the Philippines by this afternoon (March 26). (2018-03-26)

Science paper examines role of aerosols in climate change
It appears that aerosol effects on clouds can induce large changes in precipitation patterns, which in turn may change not only regional water resources, but also may change the regional and global circulation systems that constitute the Earth's climate. A group of scientists affiliated with the International Geosphere-Biosphere Program have proposed a new framework to account more accurately for the effects of aerosols on precipitation in climate models. (2008-09-05)

Study reshapes understanding of climate change's impact on early societies
A new study linking paleoclimatology -- the reconstruction of past global climates --with historical analysis by researchers at Yale and other institutions shows a link between environmental stress and its impact on the economy, political stability, and war-fighting capacity of ancient Egypt. (2017-10-17)

E-cigarette vapor slows heart rate in mice
Electronic nicotine delivery systems (ENDS) such as e-cigarettes, affect heart rhythm and cardiovascular function in mice, according to preliminary research presented at the American Heart Association's Scientific Sessions 2017, a premier global exchange of the latest advances in cardiovascular science for researchers and clinicians. (2017-11-12)

How to reduce heat extremes by 2-3 degrees C
New research published in Nature Geoscience shows how simple, proven geo-engineering measures can reduce the hottest days by 2-3 degrees C. Lightening buildings, roads and infrastructure in densely populated areas and changing crop types and using no till agricultural practices over farmland can all take the edge off the hottest days as climate change raises extreme temperatures. (2018-01-29)

Tiny particles have outsized impact on storm clouds and precipitation
Tiny airborne particles from urban and industrial air pollution, wildfires and other sources can have a stronger influence on powerful storms than scientists previously predicted, according to a new study co-authored by University of Maryland researchers. The findings suggest that ultrafine aerosols, which are smaller than one-thousandth the width of a human hair, can intensify storms, increase the size of clouds and cause more rain to fall. (2018-01-26)

Scientists discovered where black carbon comes from in the Arctic in winter and summer
Scientists from seven countries published an article on the study of the sources of black carbon (BC) emissions in the Arctic. BC aerosols are formed under incomplete fossil fuel combustion and biomass burning. Soot which is the main component of BC amplifies the melting of snow and ice cover, accelerating global warming. Based on the complex elemental and isotopic analysis the scientists revealed the seasonal contribution of various Arctic areas to BC emissions. (2019-02-15)

NASA's CATS concludes successful mission on space station
A spaceborne lidar instrument that fired more laser pulses than any previous orbiting instrument has ended its operations on the International Space Station, after a successful 33-month mission to measure clouds and tiny atmospheric particles that play key roles in Earth's climate and weather. (2017-12-06)

Current deforestation pace will intensify global warming, study alerts
In a Nature Communications article, international group of scientists affirms the prolongation of an annual deforestation of 7,000 square km can nullify the efforts for reducing GHG emissions. The study brings a new assessment on the importance of tropical forests in world climate regulation, and calculates a 0,8 °C rise on Earth's temperature in a scenario in which they are extinct. (2018-03-06)

Tiny particles have outsize impact on storm clouds, precipitation
Tiny particles fuel powerful storms and influence weather much more than has been appreciated, according to a study in the Jan. 26 issue of the journal Science. While scientists have known that aerosols may play an important role in shaping weather and climate, the new study shows that the smallest of particles have an outsize effect. The tiny pollutants -- long considered too small to have much impact on droplet formation -- are, in effect, diminutive downpour-makers. (2018-01-25)

Even the tiniest aerosol particles can kick up a storm
A new study suggests that tiny aerosol particles from pollution plumes have a greater influence on stormy weather over pristine regions of the world, such as oceans and large forests, than previously believed. (2018-01-25)

Ship exhaust makes oceanic thunderstorms more intense
Thunderstorms directly above two of the world's busiest shipping lanes are significantly more powerful than storms in areas of the ocean where ships don't travel, according to new research. (2017-09-07)

Conversation quickly spreads droplets inside buildings
With implications for the transmission of diseases like COVID-19, researchers have found that ordinary conversation creates a conical 'jet-like' airflow that quickly carries a spray of tiny droplets from a speaker's mouth across meters of an interior space. (2020-09-29)

Fire air pollution weakens forest productivity
Fire impacts on global carbon cycle. The damage to ecosystem productivity not only occurs in fire regimes, but also over the downwind areas through long-range transport of air pollution. Such negative impacts may exacerbate in the future as fire activities are expected to escalate in a warming climate. (2018-12-21)

Cloud formation suppressed by biogenic organic emissions
Researchers have found evidence that near-ground biogenic emissions of organics suppress cloud formation in cool-temperate forests in autumn, providing clues to how global warming will affect cloud formation and the overall climate. (2017-09-06)

Air pollution may impact fetal cardiovascular system, Rutgers study says
Microscopic particles in air pollution inhaled by pregnant women may damage fetal cardiovascular development, according to a study by Rutgers researchers. The study, published in the journal Cardiovascular Toxicology, found that early in the first trimester and late in the third trimester were critical windows during which pollutants most affect the mother's and fetus' cardiovascular systems. (2019-03-11)

Filling the gap: High-latitude volcanic eruptions also have global impact
Chinese and German scientists have found evidences showing that a high-latitude volcano can enhance the aerosol layer in the tropical stratosphere, and also have impact on the climate of both hemispheres. (2017-11-20)

Aerosols strengthen storm clouds, according to new study
An abundance of aerosol particles in the atmosphere can increase the lifespans of large storm clouds by delaying rainfall, making the clouds grow larger and live longer, and producing more extreme storms, according to new research from the University of Texas at Austin. The study is the first to address the impact that aerosol particles have on the lifespans of large thunderstorms called mesoscale convective systems. (2016-06-13)

NASA airborne mission returns to Africa to study smoke, clouds
NASA's P-3 research plane begins flights this month through both clouds and smoke over the South Atlantic Ocean to understand how tiny airborne particles called aerosols change the properties of clouds and how they influence the amount of incoming sunlight the clouds reflect or absorb. (2017-08-10)

Future PM2.5 air pollution over China
There is a long way to go to mitigate future PM2.5 pollution in China based on the emission scenarios. At the same time, the consequent warming from reduced aerosols is also significant and inevitable. (2016-11-23)

So much depends on the velocity of tiny droplets cast upward
New research describes the velocity of aerosols cast upward as bubbles on a liquid's surface burst. Above the ocean, these droplets transfer moisture, salt, and even toxins such as algae from water to air. Knowing the speed and height of aerosols applies to numerous areas of scientific and economic interest, including more accurate climate modeling or creating a perfect glass of champagne. (2018-03-08)

Team gathers unprecedented data on atmosphere's organic chemistry
Teams of scientists from MIT and elsewhere carried out the most detailed, extended observations of atmospheric chemistry ever attempted in one place, in patch of ponderosa pine forest in Colorado, and found previously unmeasured compounds. (2017-09-04)

Two-faced South Asian monsoons both propagate and purify pollution in the air
An airborne research campaign exploring the 'self-cleaning capacity' of the atmosphere has revealed summer monsoons in South Asia may both purify the air of some pollutants but disperse others. (2018-06-14)

The complexities of clouds and the seeds that make them
In an effort to understand exactly how the micro and macro cloud properties interact with atmospheric particles, a collaborative research team conducted a modeling study analyzing three well-documented weather systems that occurred in March of 2000 over the southern Great Plains in the United States. (2018-01-10)

Study discovers South African wildfires create climate cooling
For years, scientists determined that smoke, overall, diminishes clouds' cooling effect by absorbing light that the clouds beneath the aerosols would otherwise reflect. This new study does not dispute that phenomenon. However, more dominantly, the new study found that smoke and cloud layers are closer to each other than previously thought. This makes the clouds more reflective of light and, thus, accelerates the clouds' cooling effect. (2018-03-05)

Flu virus is protected by mucus when airborne, regardless of humidity
Mucus and other airway secretions that are expelled when a person with the flu coughs or exhales appear to protect the virus when it becomes airborne, regardless of humidity levels, a creative experiment conducted by the University of Pittsburgh and Virginia Tech discovered. The results refute long-standing studies that indicated the influenza virus degrades and is inactivated sooner as the humidity increases. (2018-06-07)

Role aerosols play in climate change unlocked by spectacular Icelandic volcanic eruption
A spectacular six-month Icelandic lava field eruption could provide the crucial key for scientists to unlock the role aerosols play in climate change, through their interactions with clouds. (2017-06-21)

Drexel study: 'Non-smoking' doesn't mean smoke-free
Despite decades of indoor smoking bans and restrictions, new research from Drexel University suggests the toxins we've been trying to keep out are still finding their way into the air inside. Findings by a group of environmental engineers show that third-hand smoke, the chemical residue from cigarette smoke that attaches to anything and anyone in the vicinity of a smoke cloud, can make its way into the air and circulate through buildings where no one is smoking. (2018-05-09)

UMBC physicists show interactions between smoke and clouds have unexpected cooling effect
Atomspheric physicists have found that the way wildfire smoke from Africa interacts with clouds over the Atlantic Ocean results in a net cooling effect, which is contrary to previous understanding and has implications for global climate models. The smoke particles serve as 'seeds' for the clouds, making them bigger and brighter and increasing their reflectivity, which more than compensates for the warming effect caused by the dark smoke blocking the clouds from reflecting sunlight. (2018-03-05)

Air pollution may have masked mid-20th Century sea ice loss
Humans may have been altering Arctic sea ice longer than previously thought, according to researchers studying the effects of air pollution on sea ice growth in the mid-20th Century. (2017-02-23)

Soot may have killed off the dinosaurs and ammonites
A new hypothesis on the extinction of dinosaurs and ammonites at the end of the Cretaceous Period has been proposed by a research team from Tohoku University and the Japan Meteorological Agency's Meteorological Research Institute. (2016-07-14)

Remote sensing for cosmic dust and other celestial bodies
In a paper recently published in EPJ Plus, Stefano Bagnulo from Armagh Observatory and Planetarium, UK, and colleagues review the state-of-the-art in polarimetry studies of the small bodies in our solar system. Combined with different observational techniques, polarimetry may be used as a remote sensing technique to measure asteroids' size, to reveal the composition and size variation of dust in comets or of aerosols in planetary atmospheres, or even to detect extra-terrestrial biomarkers. (2017-10-11)

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