Almost 40% of Americans live with dirty air: Report
Nearly 40% of Americans live where the air is polluted enough to harm them, a new report warns.
Apr 24, 2024
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Nearly 40% of Americans live where the air is polluted enough to harm them, a new report warns.
Apr 24, 2024
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Since developing countries have both lower levels of hospital infrastructure and serious health shocks driven by air pollution, how responsive are their health care systems to these health shocks? In a new study, researchers ...
Apr 23, 2024
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Active military service may heighten a woman's risk of having a low birthweight baby, suggests a review of the available scientific evidence published online in the journal BMJ Military Health.
Apr 22, 2024
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A study by researchers at National Jewish Health published in the Annals of Allergy, Asthma & Immunology reports that air pollutants—including particulate matter, pollen, greenhouse gases, and other harmful substances—can ...
Apr 22, 2024
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The U.N. labor organization warned Monday that over 70% of the world's workforce is likely to be exposed to excessive heat during their careers, citing increased concern about exposure to sunlight. It also warned of air pollution, ...
Apr 22, 2024
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A growing body of research shows that exposure to air pollution, especially during pregnancy and childhood, may have a negative impact on brain development. Now a study led by the Barcelona Institute for Global Health (ISGlobal) ...
Apr 17, 2024
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A new Emory University study has found that adults exposed to high levels of air pollution were at an increased risk of developing Alzheimer's disease.
Apr 11, 2024
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The nose or the gut? For the past two decades, the scientific community has debated the wellspring of the toxic proteins at the source of Parkinson's disease. In 2003, a German pathologist, Heiko Braak, MD, first proposed ...
Apr 11, 2024
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Are you one of the estimated 104,000 Americans who lives within six miles of factories that spew organic chemicals into the air?
Apr 9, 2024
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Checking air quality and staying indoors when smoke inundates the Seattle area has become second nature during Washington's wildfire season in recent years. But new research highlights how wildfires can affect a less visible ...
Apr 5, 2024
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The Earth's atmosphere is a layer of gases surrounding the planet Earth that is retained by the Earth's gravity. It has a mass of about five quadrillion metric tons. Dry air contains roughly (by volume) 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and trace amounts of other gases. Air also contains a variable amount of water vapor, on average around 1%. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night.
There is no definite boundary between the atmosphere and outer space. It slowly becomes thinner and fades into space. An altitude of 120 km (75 mi) marks the boundary where atmospheric effects become noticeable during atmospheric reentry. The Kármán line, at 100 km (62 mi), is also frequently regarded as the boundary between atmosphere and outer space. Three quarters of the atmosphere's mass is within 11 km (6.8 mi; 36,000 ft) of the surface.
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