Researchers developed a laser-based airborne lidar system that measures atmospheric gases with high accuracy and resolution, helping scientists better understand their impact on the climate. The new system can provide detailed gas profiles, overcoming limitations of existing methods and enabling more accurate climate predictions.
A new study suggests that reducing China's ozone pollution can prevent hundreds of thousands of premature deaths by 2050. The research found that climate change alone could cause a 11% increase in ozone pollution, leading to an additional 62,000 premature deaths.
A new study suggests that super volcanic eruptions could significantly impact ozone layer recovery, with estimated depletions ranging from 2.5% to 6.4%. The research used transport and chemistry-climate models to simulate the effects of super volcanoes on stratospheric ozone during different recovery periods.
Researchers at Hiroshima University discover that a layer of cells resembling normal stomach lining is produced by stomach cancer tissue itself, making it difficult to spot after Helicobacter pylori infection treatment. This finding highlights the need for continued check-ups even after H. pylori eradication.
When ozone and skin oils meet, they produce volatile gases and substances that can cause sensory irritations. People with asthma may be particularly vulnerable to ozone and its reaction products.
A new report reveals that ozone-driven climate change is having far-reaching impacts on the Earth's ecosystems, from weather patterns to sea mammal populations. The study found that warmer oceans are benefiting some species, while others are declining due to changes in ocean productivity and acidification.
Researchers used rare oxygen molecules trapped in air bubbles in old ice and snow to track ancient ozone levels, establishing a limit of 40% increase since 1850. This new data bolsters confidence in atmospheric chemistry models' ability to predict future changes.
A University at Buffalo study found a strong association between chronic ozone exposure and progression of carotid artery thickening, as well as an increased risk of carotid plaque. The research suggests that air pollution may contribute to cardiovascular disease and stroke by accelerating arterial conditions.
A new research finding published in Nature has located the source region for about half of the new CFC-11 emissions, which are attributed to an increase of around 7000 tons per year in trichlorofluromethane added to the atmosphere since 2013. This is primarily linked to new production from eastern China.
A new study by an international team of scientists identified a significant increase in CFC-11 emissions in eastern China since 2013, posing a threat to the recovery of the stratospheric ozone layer. The findings suggest that new production of CFC-11 has taken place in the region, primarily for building insulation and refrigerators.
Over the past decade, US air pollution has led to a decline in mortality impacts from fine particle (PM2.5) pollution, but ground-level ozone (O3) pollution has remained relatively unchanged. This report estimates health impacts of air pollution for every US city and highlights the need for continued efforts to reduce these pollutants.
ROZE, a NASA instrument discovered by accident, measures ambient levels of ozone with high precision, 100 times better than commercial instruments. This discovery is crucial for municipalities and states to understand the ozone budget and accurately model ozone movement.
Researchers found elevated ozone levels 30-50% higher than baseline conditions in the Amazon rainforest downwind of the city. Human activities release nitrogen oxides and VOCs that mix with plant-emitted gases, producing chemicals affecting regional air quality and climate.
Researchers analyzed data from Fresno and Bakersfield before, during, and after the California drought to understand its impact on ozone air quality. They found that severe drought conditions led to a 20% decrease in ozone production due to reduced isoprene concentrations and altered VOCs.
Green roofs have been found to improve indoor air quality by reducing ozone levels, according to a PSU study. The research involved comparing air quality between a green roof and a conventional white membrane roof on a retail store in North Portland.
Researchers have discovered a persistent pattern in the arrangement of islands that form on crystal surfaces during layer-by-layer growth. The study uses coherent X-ray scattering to reveal correlations across the sample, providing insights into crystal growth dynamics and potential applications in materials science.
Scientists at the University of Basel create a three-layer superlattice using graphene and boron nitride, producing new electronic material properties.
Researchers at Kanazawa University have developed a plasma-assisted MnO2 filter that produces exhaust free of NOx and SOx. The filter augments the desulfurization properties of MnO2 with ozone from an atmospheric-pressure non-equilibrium plasma, improving NO2 elimination by over 99%.
Researchers observed that massive stars losing mass to companion stars before exploding can create Type Ib or IIb supernovae. Stellar winds also play a role in the process, especially for high-mass stars.
A study of air pollution and respiratory emergency room visits found associations between ozone, fine particulate pollution, and increased ER visits for asthma, COPD, and pneumonia, varying by age group and pollutant level. The study suggests that protecting vulnerable populations from air pollution is crucial.
Researchers found that a reduction in PM 2.5 concentrations in eastern China has led to an increase in ground-level ozone pollution, particularly in large cities. The study suggests that extra efforts are needed to reduce NOx and VOC emissions to stem the tide of ozone pollution.
Summer surface ozone levels in China rose in four major cities between 2013 and 2017 due to decreasing particulate matter emissions. This increase can slow the natural cleanup of hydroperoxy radicals from aerosols, sparking concerns about anthropogenic ozone precursor emissions.
A new MIT study identifies chloroform as a significant threat to ozone layer recovery, with increased emissions in East Asia potentially delaying the process by four to eight years. The researchers found that production of products from chloroform is on the rise in the region, contributing to the growing problem.
A new study by University of Colorado Boulder researchers found that ozone depletion above Antarctica increases snowfall, partially offsetting the continent's ice sheet mass loss. However, the gains in snowfall are outpaced by an even greater ice loss rate due to warming oceans.
Researchers discovered a mechanism for how ice particles and certain molecules release harmful substances into the atmosphere. The study found that organic molecules attach to ice particle defects, leading to UV radiation-induced radicals that damage the ozone layer.
Analysis of Alpine ice shows tripled iodine levels since Second World War, partially balancing ozone production. Researchers now call for inclusion of iodine data in climate models to predict future environmental outcomes.
A new ocean mixed layer model reproduces a more realistic sea surface temperature (SST) diurnal cycle than existing models. The 31-year global diurnal sea surface temperature dataset reveals significant seasonal and interannual variations of SST, with potential implications for ENSO prediction.
A study by Rice University researchers found that Texas would be healthier with stronger limits on sulfur dioxide emissions from coal plants. The study analyzed 13 coal plants and concluded that particulate matter is the deadliest air pollutant, causing respiratory diseases, heart attacks, and strokes.
Researchers have uncovered the importance of mucus clearance in maintaining healthy airways. In chronic lung diseases, such as cystic fibrosis and COPD, immobile mucus layers can accumulate bacteria, damaging lungs. The studies suggest using inhalation sprays to keep mucus bundles moving may impede formation of these harmful layers.
A study published in Environmental Health Perspectives found that air pollution from ozone and fine particulate matter may be responsible for nine to 33 million emergency room visits globally. The research suggests that policies aimed at cleaning up the air can reduce the global burden of asthma.
A new study by Duke University and the University of York estimates that long-term ozone exposure in Europe, the USA, and China led to 266,000 premature mortalities in 2015. The research uses observed air quality data instead of chemical transport models, finding smaller human-health impacts compared to prior modeling results.
Researchers at the University of Nottingham have discovered a characteristic of the Descemet membrane that can cause difficulties for surgeons performing corneal transplants. The study found that elastin, an elastic-like fiber, governs the direction of the membrane's roll and may be responsible for its unidirectional behavior.
Scientists at Johannes Gutenberg University Mainz and Aschaffenburg University of Applied Sciences have made a breakthrough in binding the highly ozone-depleting chlorofluorocarbon Freon 11. They discovered that modified cyclic sugar molecules can effectively adsorb and detect Freon 11, preventing its release into the atmosphere.
Researchers at UCLA Samueli School of Engineering created a highly efficient thin-film solar cell that generates more energy from sunlight than typical solar panels. The device converts 22.4 percent of incoming energy, surpassing the previous record set in 2015.
A new study reveals China's air quality is worse than the US, Europe, Japan, and South Korea in terms of surface ozone levels. The country experiences more high ozone days than any other nation, posing a significant threat to human health and crops.
Researchers developed a more comprehensive method for measuring the Earth's boundary layer depth using radar, which constantly ebbs and flows. This improvement in accuracy can lead to better forecasts for severe weather events, air pollution, and wildfire forecasting.
Scientists have identified key defects in perovskite solar cells that limit their efficiency. The most harmful defects are found at the interfaces between the perovskite layer and charge transport layers, leading to recombination of charge carriers and energy losses.
Researchers have found that the cell layer surrounding breast milk ducts acts as an active defense mechanism to prevent cancer cells from spreading, grabbing stray cells and pulling them back in up to 92% of the time. This discovery challenges previous assumptions about the myoepithelial layer's role in cancer invasion.
Researchers at Lobachevsky University explore the use of ozonized erythrocyte mass to correct acute blood loss. The study reveals that ozone treatment improves the rheological properties of blood and microcirculation, reducing tissue hypoxia and promoting rapid recovery.
Researchers successfully created the first experimental realization and structural investigation of single-layer VS2, revealing its unique electronic properties. The team discovered a new vanadium sulphide compound with similar stoichiometry to single-layer VS2, raising hopes for two-dimensional magnetism.
Ozone concentrations in US national parks are comparable to those in largest metropolitan areas between 1990 and 2014. Higher ozone levels are linked to decreased park visitation rates during this time period.
The study found that pollution levels in Hong Kong are mainly determined by tropical cyclone locations, with different impacts on PM10 and ozone levels. Tropical cyclones bring high concentrations of pollutants when located east or southeast of Hong Kong.
Russian scientists have developed a new method of bioprinting that allows creating 3D-biological objects without the use of layer-by-layer approach. This technology was made possible by magnetic levitation experiments in microgravity conditions, enabling the creation of radiation-sensitive biological constructs and repair of damaged ti...
Researchers found statistically significant associations between yearly changes in PM2.5 and ozone concentrations with yearly change in hospital admission rates for ARDS among seniors. Hospital admissions increased even when seniors were exposed to levels below current air quality standards.
A long-term study has found that exposure to ozone at birth is associated with an increased risk of developing asthma, allergic rhinitis, and eczema in childhood. The study, which followed 1,881 children from birth to age 17, found that even small increases in ozone exposure were linked to a higher risk of developing these conditions.
New NOAA study reveals unexpected increase in CFC-11 emissions, likely from new production sources in eastern Asia. This rise in emissions threatens the ozone layer recovery, with significant delays expected if remedied soon.
Researchers found a 76% slowdown in nitrogen oxide emissions reduction from 2005 to 2015, contradicting EPA predictions of a 16% decrease. The discrepancy was largely due to increased industrial and off-road vehicle emissions while on-road gasoline vehicles declined.
A new study reveals that US improvements in air quality are slowing down, making it challenging to meet ozone pollution goals. The slowdown is attributed to slower-than-expected reductions in emissions from industrial and commercial sources.
Scientists propose a new model where a heavy layer of molten rock sits on top of the Moon's metal core, driving the dynamo and creating a strong magnetic field. This model explains the Moon's early strong magnetic field and its subsequent weakening.
A new study published in the European Respiratory Journal found that long-term exposure to high levels of road traffic and ozone significantly increases the risk of asthma symptoms and medication use. The study also identified a biological marker, 8-isoprostane, which is exhaled in the breath and linked to tissue damage in the lungs.
Astronomers found intense X-ray radiation from red dwarf stars can strip away a planet's ozone layer, making it uninhabitable. This means that life on land might only survive in the oceans.
Research finds drained fertile peatlands and irrigated organic soils boost nitrous oxide emission significantly. Conservation of fens and swamps is crucial to reduce climate change impact.
OU Professor Cameron Homeyer received a NASA Research Opportunities in Space and Earth Science grant to study the effects of storms on atmospheric composition. He aims to link ground-based radar observations with satellite data to better understand storm characteristics.
Researchers refuted long-held beliefs about sodium's impact on solar cell production by demonstrating its dual effect: homogenizing elements within grains but slowing inter-grain homogenization. This finding could lead to improved manufacturing processes and new insights into solar cell production.
Researchers have identified diatoms as a weak layer responsible for submarine mega-slides, which can trigger tsunamis. The discovery sheds light on the geological processes that govern these massive slides, which can move millions of cubic kilometers of material.
Researchers predict few-layer Tellurium (FL-α-Te) as a superior semiconductor to black phosphorus due to its high carrier mobility, tunable bandgap, and strong light absorption. FL-α-Te exhibits anisotropic inter-chain vibrational behaviors and nearly isotropic strong light absorption, making it an ideal material for thermoelectrics.
Pine trees become temporarily sterile when exposed to intense UV radiation, similar to what scientists believe the Earth experienced 252 million years ago. The effect suggests caution in introducing chemicals that deplete the ozone layer.
The ozone layer has continued to decline in the lower stratosphere, contrary to expectations that it would have recovered by the middle of the century. Satellite measurements show a decrease in ozone concentrations at latitudes between 60° S and 60° N since the Montreal Protocol banned ozone-depleting substances in 1989.
Global ozone decline since the 1970s persists, with unexpected decreases in lower stratosphere preventing recovery at lower latitudes. Scientists point to climate change and short-lived substances as potential causes.
Research led by the Universities of Leicester and Edinburgh reveals that surface ozone levels are detrimental to human health, with increasing levels in East Asia. The study analyzed data from over 4,800 monitoring stations worldwide, showing a decrease in ozone levels in Europe and North America but an increase in East Asia.