Articles tagged with Ozonosphere
A recent study led by the University of Cambridge found that ozone plays a crucial role in global warming, reducing surface warming by approximately 20% compared to most models. This discovery underscores the importance of including ozone feedback in climate models for more accurate predictions.
A major field project on the northern Front Range of Colorado will provide needed information to officials seeking to ensure healthy air. The study, FRAPPÉ, uses specially equipped aircraft, networks of ground-based instruments, and sophisticated computer simulations to track summertime ozone pollution.
Research by Meiyun Lin and colleagues found that Asian ozone pollution reaching Hawaii is relatively low in spring but rises significantly in autumn due to changes in atmospheric circulation. This shift has significant implications for understanding surface ozone levels globally.
Researchers found ozone, UV, and humidity significantly impact silver's corrosion rate. By understanding these factors, new models can predict atmospheric corrosion rates and improve performance. The study also aims to explore other metals' corrosion behavior.
Research found that during extreme heat, plants' ozone absorption is curtailed, leading to increased air pollution and up to 20 days of ozone levels above safety threshold. This can result in thousands of premature deaths, mostly among people with respiratory diseases.
OzoneMap is a free mobile app that provides real-time air quality reports for the greater Houston area. It features a map of the city with colored clouds illustrating ozone levels, allowing users to select from three different maps and access information on health effects.
A new study from Rice University suggests that a widely used model to predict the impact of pollution controls has been too conservative. In Northeastern cities, ozone levels dropped significantly beyond expectations after cutting emissions of nitrogen oxides from 2002 to 2006.
Ozone's impact on forest watersheds amplifies drought and alters stream flow, reducing available water supplies. Forest ecosystems and people dependent on water flow during dry seasons will be affected.
New research suggests that ozone gas emitted from fracturing rocks could indicate impending earthquakes. Different types of rocks produced varying amounts of ozone, with rhyolite producing the strongest emission.
A study has characterized a crucial chemical reaction that affects ground-level ozone formation in urban areas. The research, funded by NSF and NASA, reveals that current computer models may underestimate ozone levels in urban areas by up to 10%.
The NPP satellite will collect and distribute remotely sensed data on land, ocean, and atmosphere, providing atmospheric and sea surface temperatures, humidity, and ozone measurements. The CrIS instrument will combine with the Advanced Technology Microwave Sounder to provide global atmospheric temperature, moisture, and pressure profiles.
Researchers used a computer model to show how HCFCs break down into oxalic acid, contributing to acid rain. The study highlights concerns over the environmental impact of replacing ozone-depleting substances with more potent greenhouse gases.
Surface ozone levels in southwestern Spain consistently exceed recommended limits, affecting human and plant health. The study found daily cycles of high ozone levels during spring and summer months, with concentrations varying between stations.
A new study by NOAA and international partners found that springtime ozone levels in western North America are rising due to air flowing eastward from the Pacific Ocean, primarily from Asia. The increases could make it harder for the US to meet ozone pollution standards.
A new study links springtime ozone increases above western North America to air pollution from Asia and other regions. Researchers analyzed nearly 100,000 ozone observations to find that global atmospheric wind patterns track emissions back to broad regions of origin.
A University of Utah engineer has developed a new method to remove oil sheen from polluted water using tiny bubbles created by pressurizing ozone gas. This method, which targets the oil sheen and other pollutants, could be used to clean wastewater discharged into coastal waters and soil contaminated with heavy metals.
A recent study found that climate change models may underestimate the impact of changing atmospheric chemistry on water runoff. The researchers discovered that increased concentrations of carbon dioxide and ozone in the atmosphere and nitrogen in the soil can lead to a 17% increase in forest runoff in eastern US forests.
A nationwide study found that long-term exposure to ground-level ozone is associated with a 25-30% greater annual risk of dying from respiratory diseases. The study followed nearly 450,000 people for two decades and covered 96 metropolitan regions in the US.
A chemical reaction in the atmosphere above major cities is a significant contributor to urban ozone and smog, according to UC San Diego chemists. This new mechanism involves reactions between water vapor and NO2, producing OH radicals that attack hydrocarbons and form nitrogen dioxide.
Researchers at the Alfred Wegener Institute found that stratospheric ozone chemistry significantly influences the Arctic Oscillation, leading to changes in atmospheric air flows and temperature distribution. This basic knowledge is crucial for improving climate models and reducing uncertainty in simulated climate developments.
Research published in Occupational and Environmental Medicine suggests that high temperatures increase the risk of cardiovascular death from heart disease or stroke. Ozone levels are a common link between temperature fluctuations, with higher ozone levels associated with increased cardiovascular mortality.
The University of Houston's Moody Tower Atmospheric Chemistry Facility conducts round-the-clock monitoring for the Texas Air Quality Study-II. Researchers collect data on various pollutants, including ozone-forming compounds, and develop a Gulf Coast Air Quality Model to improve air quality predictions.
The study's findings suggest that the presence of oxygen in the atmosphere may not have been as absolute as previously thought, with fluctuations occurring over time. The researchers analyzed ancient sediments and found that sulfur isotope ratios did not exhibit abnormal patterns consistent with an oxygen-free atmosphere.
Research finds large amounts of nitrogen oxides (NOx) transported to North America from the Pacific Ocean in May contribute to significant increases in ozone levels over the region. The discovery will help build better models to understand how pollutants affect other regions, with potential implications for air quality and human health.
A nationwide study published in Environmental Health Perspectives found that even very low levels of ozone increase the risk of premature death. The study suggests that further reductions in ozone pollution would benefit public health, even in areas that meet current regulatory standards.
Researchers using Aura's nearly up-to-the-hour data track important pollutants like ozone and nitrogen oxide. The satellite provides better predictions of future climate change by monitoring ice in clouds, which affects solar energy reflection and radiation trapping.
Researchers found that ozone levels are closely related to the formation, intensification and movement of hurricanes. The study's findings can help improve predicted tracks and lead to better tracking of storms. Ozone data can provide a clearer view of a hurricane's eye, aiding in storm position pinpointing.
Researchers found a strong relationship between ozone levels and hurricane behavior, enabling better tracking and forecasting. Ozone data helps pinpoint the storm's eye, leading to more accurate predictions of hurricane movement.
A Harvard researcher predicts a decline in cleansing summer winds, leading to increased ground-level ozone pollution. This could exacerbate respiratory issues like asthma for affected populations.
Scientists examine how oleic acid reacts with ozone and water molecules in the atmosphere, producing hazardous byproducts that can cause respiratory problems. The researchers aim to measure the exact amount of these byproducts formed during reactions.
The CU-Boulder satellite's HIRDLS instrument will provide a clearer picture of the ozone layer's recovery and greenhouse gas distribution. With finer horizontal resolution and increased sensitivity, the instrument is expected to produce valuable data on climate change.
Scientists use NASA satellites and balloon-borne sensors to track the movement of a pollution train traveling from the Indian Ocean to the South Atlantic. The study reveals that Asian pollution can flow southward, get caught up in clouds, and reach as far as Brazil.
Scientists have found that nighttime chemistry removes nitrogen oxides from the marine boundary layer off New England's coast, leading to reduced ozone production. This process can short-circuit some ozone formation and affects air quality forecasts.
Researchers at Lawrence Livermore National Laboratory have developed a novel technique to quantify stratospheric ozone in the upper troposphere. This allows for better understanding of how much ozone is transported from the stratosphere to the upper troposphere, affecting climate and atmospheric chemistry.
Researchers have extended atmospheric record of methyl bromide over 300 years by analyzing air bubbles in an ice core. The study shows that global atmospheric methyl bromide levels increased significantly during the industrial era.
Researchers have discovered that halogen ions on the ocean's surface play a significant role in atmospheric chemistry, influencing ozone production and potentially exacerbating respiratory problems. The study found that iodide and bromide ions were more likely to react with other chemicals, leading to increased ozone formation.
Scientists say that replacing gasoline-fueled vehicles with cleaner diesel technology could lead to a significant increase in surface ozone levels, particularly in the Southeast. The study found that pollutants such as nitrogen oxides and hydrocarbons also increased, highlighting the need for more effective pollution control measures.
Scientists report that ozone standards set by EPA may be weaker than necessary due to overestimated background levels. Using a three-dimensional model of atmospheric chemistry, researchers found great variability in ozone depending on season, elevation, and geographic area.
The study improved forecast accuracy for a major winter snowstorm in Washington, D.C. and demonstrated the potential to enhance storm tracking and predict snowfall amounts.
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.
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.
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.
Researchers found that dissolved organic matter protects most amphibian embryos from harmful levels of UV-B radiation in natural habitats. The studies suggest that the causes of amphibian population declines may be specific to each region and require a more nuanced approach.
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.
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 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 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.
Researchers at Resources for the Future (RFF) argue that tighter ozone standards won't resolve urban smog problems due to local conditions and economic competition. The authors suggest targeting individuals' driving habits and activities as an alternative to mandated regulation.