This study found that elevated tropospheric ozone concentrations inhibit photosynthesis in soybeans, leading to decreased growth and yield. The results suggest a potential annual loss of $21 million for the US soybean industry based on current production levels.
A recent study suggests that rising ozone levels could lead to a significant loss of $21 million annually in US soybean production over the next 30 years. Researchers found that soybeans suffer from reduced photosynthesis and biomass, resulting in fewer seeds and pods, and decreased seed weight.
The ozone layer is showing signs of slowing down its destruction due to the global ban on chlorofluorocarbons (CFCs), according to a new study. The research team found that ozone depletion in the upper stratosphere has slowed since 1997, but the trend is not reflected in the lower stratosphere.
Researchers found that lightning is the primary source of low-altitude ozone in the tropical Atlantic Ocean, defying previous expectations. The discovery was made using satellite data and computer models, which showed a significant increase in ozone levels near areas with intense lightning activity.
A team of researchers has made a groundbreaking discovery linking black hole growth to galaxy evolution. The study found that more than 20,000 galaxies contain growing black holes, mostly in massive galaxies with recent star formation. As the rate of black hole growth increases, so does the amount of recent star formation.
Researchers used satellite data and a computer model to study ozone formation, finding that lightning strikes in tropical Atlantic may be a major contributor. The study combined data from multiple NASA satellites and a Canadian computer model to make the surprising discovery.
A Cornell University study found city-grown air pollution, particularly ozone, hinders rural tree growth. Contrary to expectations, city trees outperformed their country counterparts in terms of biomass.
Researchers confirm that particulate air pollution and ozone react with pollutants over Lake Michigan, generating more toxic compounds. City residents may experience high concentrations of hazardous substances before they dissipate, increasing the risk of asthma attacks.
Researchers found that half of the ozone is lost through unknown mechanisms in summer, but absorbed by trees in winter. The study suggests that understanding natural processes is crucial for developing scientifically-based air quality management policy.
Astronomers discovered a galaxy without a visible central bulge but with a massive black hole, challenging previous assumptions about the formation of supermassive black holes. The galaxy's black hole has a mass approximately 10,000 to 100,000 times that of the sun.
Researchers have found evidence of high-speed winds blowing copious amounts of gas from the cores of quasar galaxies, powered by black holes. The winds may regulate black hole growth and create new stars, with a wind transporting substantial amounts of carbon, oxygen, and iron into the interstellar medium.
The study reveals that photochemical effects dominate the winter-to-spring ozone increase, while stratospheric sources account for a small fraction of the observed ozone. Local ozone production is found to be more significant than the amount delivered from aloft during late spring.
Researchers found that lightning creates significant amounts of nitrogen oxides and ozone in the free troposphere. The study showed that lightning is a major contributor to regional air chemistry, generating more oxidants that help clean up the atmosphere while also producing pollutants like ozone.
Researchers at Scripps Research Institute have found that the human body produces ozone as part of a mechanism to protect itself from bacteria and fungi. The discovery suggests a new role for neutrophils and antibodies in the immune system, potentially leading to new treatments for inflammatory diseases.
Astronomers have strengthened the case for a massive black hole at the galactic center with observations of a newly discovered star. The star's high velocity and proximity to the black hole confirm its presence, ruling out alternative explanations.
A University of California, Irvine study found that sea-salt chlorine reactions can raise ozone levels by up to 10% in Southern California smog. This could lead to increased pollution in coastal regions, with predicted ozone levels exceeding national standards on certain days.
Researchers at Purdue University found that ozone can effectively kill insects in grain storage facilities without damaging food quality or the environment. The gas has a short half-life and low dosage is used to eliminate bugs, reducing the risk of mycotoxins and potential food-borne diseases.
A CU-Boulder study suggests that elevated CO2 concentrations in agriforests can reduce isoprene emissions, a key contributor to ground-based ozone pollution. This finding could have significant implications for mitigating regional ozone pollution and enhancing climate mitigation strategies.
Large planetary waves in the atmosphere led to a smaller Antarctic ozone hole in 2002. However, scientists emphasize that these weather patterns do not indicate the ozone layer is recovering and may return to previous sizes next year.
Scientists at The Scripps Research Institute report that antibodies can kill bacteria through the production of hydrogen peroxide, which also leads to the formation of ozone. This discovery opens up possibilities for new antibody-mediated therapies for conditions ranging from bacterial and viral infections to cancer.
The Upper Atmosphere Research Satellite (UARS) has recorded the Sun's influence on ozone and atmospheric gases over an 11-year solar cycle. The complete dataset provides key measurements toward understanding natural and man-made influences on ozone.
A star orbiting the massive Milky Way centre has been observed approaching the central black hole to within three times the distance between the Sun and Pluto. The new measurements provide conclusive evidence for the existence of a supermassive black hole at the centre of our galaxy.
Researchers tracked a star's orbit around a suspected black hole in the Milky Way, revealing its massive gravitational pull. The observation provides key evidence for the existence of a supermassive black hole at the galaxy's center.
A study by Arlene M. Fiore and colleagues suggests that reducing manmade methane emissions could have a greater impact on global ozone levels than reducing nitrogen oxide emissions. This reduction in methane would also help decrease greenhouse warming and surface air pollution.
The Antarctic ozone hole is smaller than usual this September due to unusual stratospheric weather patterns. The researchers warn that a single year's pattern does not make a long-term trend, and the data are not conclusive that the ozone layer is recovering.
Researchers studying isoprene emissions from oak trees in Houston have found that these reactions can lead to increased ozone production and ground-level air pollution. The study aims to understand the critical steps in this process to mitigate environmental damage.
Scientists found that climate change from greenhouse gases may greatly slow ozone recovery due to increased water vapor and temperature changes in the upper atmosphere. Ozone levels are expected to reach their lowest point by around 2006, according to NASA research.
Researchers from Brookhaven National Laboratory found that high concentrations of volatile organic compounds (VOCs) in the Houston Ship Channel region contribute to excessive ozone production. The study's findings may lead to more effective regulations for protecting public health.
NASA's SHADOZ project has solved a decade-old mystery about the source of Atlantic ozone, revealing a 'wave-one pattern' that is predominantly in the troposphere. The data also show that the tropical tropopause is not a sharp boundary but a 2-mile thick transition layer.
Researchers from the University of Colorado Boulder have found that ozone-gobbling chlorine free radicals produced by CFC breakdown are more concentrated at high latitudes than previously believed. This discovery has significant implications for understanding ozone trends and their connection to climate change.
Research found that a warm polar winter made it easier for ozone to accumulate in the Arctic stratosphere, as warmer air prevented the formation of polar stratospheric clouds. This prevented the breakdown of ozone molecules, leading to higher levels of ozone in the lower stratosphere.
Jawahar C. Parekh, a New Jersey researcher, has developed an ozone-safe antiperspirant that provides better protection at lower application levels and has a longer shelf life. The new propellant reduces the formation of hazardous air pollutants when reacting with the antiperspirant's active ingredient.
Researchers at USC found a significant correlation between decreased sperm count and motility and increased ozone levels in the air, especially in Southern California. The study analyzed over 8,000 sperm samples from men in Los Angeles and Northern California and suggests that air pollution may be affecting male fertility.
A new ozone-monitoring technology, NEXLASER, is being developed to improve smog forecasting by providing continuous and affordable data in real-time. This innovation uses light detection and ranging (LIDAR) technology to track ozone concentration, enabling researchers to better understand sources and sinks of air pollutants.
Scientists discover ozone reduces common spoilage bacteria in seafood processing facilities, extending shelf life. Researchers also study hurricane-resistant retrofits on damaged houses to reduce storm damage.
A 'volcanic ozone hole' is likely to occur over the Arctic within the next 30 years due to high volcanic activity coinciding with cold winters. This could lead to a significant increase in springtime ozone loss over the Arctic, threatening more populated areas.
A new MIT model proposes that cosmic explosions may be triggered by a cosmic tango between a black hole and its companion, a spinning torus of stellar material. The model suggests that the energy released during this dance could explain recent observations of gamma-ray bursts.
Researchers use theoretical calculation to understand merger process, predicting brief brightness increase and high-speed gas outflow. The study sheds light on quasar activation following super-massive black hole mergers, a phenomenon not yet fully understood.
A US study suggests that playing outdoor team sports in areas of high ozone concentration can increase the risk of developing asthma in children. The research found that children who played three or more sports in high-ozone environments were more than three times as likely to develop asthma compared to those who did not participate.
Researchers at Idaho National Laboratory are testing the effectiveness of ozone technology to sterilize mail by delivering high concentrations of ozone through potato conveyor belts. Preliminary results indicate that a 60-minute exposure to high levels of ozone inactivates anthrax spores, providing a potential tool against terrorism.
A new NASA-funded study shows that global warming in recent decades has been caused by carbon dioxide, with other greenhouse gases including methane, tropospheric ozone, and black carbon. The growth of emissions has slowed over the past 20 years, primarily due to the phase-out of ozone-depleting gases.
A NASA study reveals that Zambia faces significant air quality challenges due to the transportation of pollutants across southern Africa. Ground-level ozone levels in Lusaka exceeded .90 parts per million during the day, posing serious health risks to local populations.
An international team of astronomers has discovered a very massive stellar black hole in the Milky Way Galaxy, weighing 14 times more than our Sun. The black hole is located in the binary system GRS 1915+105 and feeds on a low-mass star through a steady flow of stellar material.
A team of researchers using the XMM Newton satellite detected X-ray emissions from a supermassive black hole, indicating it is spinning and emitting energy through a complex magnetic field system. This discovery provides new insights into the behavior of supermassive black holes and their role in galaxy formation.
Research reveals antioxidant supplements can mitigate the negative effects of ozone gas on lung function. Additionally, tiny airborne particles are associated with increased risk of hospital admissions for heart disease among diabetics.
Scientists from PNNL are conducting a multi-organization study to gather first-of-its-kind air chemistry data essential to effectively address regional air quality problems such as ozone and microscopic atmospheric particles. The study aims to capture the distribution, transport, and formation of these pollutants in the atmosphere.
A team of Rutgers astronomers has detected a galaxy without a supermassive black hole at its center, marking the first such discovery. The team used Hubble's high-resolution instruments to observe the galaxy M33 and concluded that only a black hole smaller than 3,000 solar masses could be present.
The SoyFACE experiment is the first test of crop growth in the presence of both increased carbon dioxide and ozone. This summer, researchers will evaluate how soybeans respond to higher CO2 levels and ozone exposure on 40 acres with 24 experimental rings.
A nationwide study by Ohio State University found that ozone concentrations in US cities are primarily influenced by external factors such as construction and road intersections. The study revealed a positive correlation between public transportation use and reduced ozone levels, as well as the importance of preserving green space in d...
Purdue University researchers found that sea salt and sunlight interact to destroy ozone in the Arctic troposphere. The study suggests a naturally occurring process that may impact air quality in urban areas.
A Penn State researcher explains how atmospheric chemistry can alter the composition of air, affecting environmental quality, and how pollutants like acetone and formaldehyde contribute to ozone production. The study also explores the role of nitrogen oxide in complex chemical reactions that produce hydrogen oxides.
The discovery confirms the existence of an event horizon around the massive black hole Cygnus XR-1. The data shows chaotic fluctuations in ultraviolet light from swirling gas, consistent with theories of what scientists predict to see when matter falls close to the event horizon.
Researchers expect Arctic ozone layer recovery to be slower than expected due to unusually low stratospheric temperatures and increasing greenhouse gases. The phase out of chlorine-containing chlorofluorocarbons and halons has not slowed down ozone losses over the Arctic, with significant losses observed last spring.
Scientists have found that 'raining' electrons from Earth's magnetosphere destroy ozone in the upper atmosphere, creating a new aspect of natural ozone destruction. The degree of electron precipitation is directly related to the 11-year solar cycle.
Research finds Pneumocystis carinii pneumonia cases clustered in San Francisco and Cincinnati zip code areas, highlighting epidemiologic features of the infection. Asthmatic children's susceptibility to ozone pollution is linked to low birthweight or prematurity, with boys showing a greater response.
A UC Irvine study found that rice paddies emit significant amounts of methyl halide gases, contributing to stratospheric ozone depletion. The study suggests that agricultural sources play a role in this atmospheric phenomenon, and highlights the importance of understanding natural sources of ozone-depleting gases.
Scientists have found a mid-mass black hole in the M82 galaxy, which packs the mass of at least 500 suns into a region about the size of the Moon. The discovery opens a new field of research and suggests that such black holes may exist in our own galaxy.
High levels of ground-level ozone have been found to severely impact the growth of ozone-sensitive crops on Long Island, including spinach, grapes, pumpkins, watermelons, and tomatoes. This research highlights the urgent need for attention to be paid to ambient ozone levels in agricultural areas.
Ground-level ozone levels are high enough to reduce growth and yield of sensitive plants on Long Island, where important agriculture is located. White clover has been particularly affected, with a 24-27% reduction in growth rate.
Researchers have discovered that ozone directly affects plant aging genes, accelerating leaf yellowing and growth retardation. The findings may lead to the development of ozone-resistant plant varieties, reducing agricultural losses estimated at $3 billion annually.