A new study by researchers at the University of Montana, Universidad del Valle de México, Instituto Nacional de Pediatría, Boise State, and Universidad Nacional Autónoma de México, heightens concerns over the detrimental ...
Jun 8, 2017
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"Biology shows us that there are additional ways to reduce the risk of serious coronavirus infections, in addition to hand hygiene and keeping distance," Viola Vogel writes.
Mar 13, 2020
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Breathing in polluted air could lead to toxic particles being transported from lungs to brain, via the bloodstream—potentially contributing to brain disorders and neurological damage, a new study reveals.
Jun 20, 2022
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Researchers at the Centenary Institute and the University of Technology Sydney have identified a new drug target for the treatment and prevention of chronic obstructive pulmonary disease (COPD), an inflammatory lung disease ...
Jul 5, 2022
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If mice commuted, their brains might find it progressively harder to navigate the maze of Los Angeles freeways.
Apr 7, 2011
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Icahn School of Medicine at Mount Sinai researchers have linked high levels of exposure to inhaled particulate matter by first responders at Ground Zero to the risk of obstructed sleep apnea and post-traumatic stress disorder ...
Mar 20, 2014
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A health impact study has for the first time estimated the mortality burden attributable to air pollution in more than 1,000 European cities. The study, published in The Lancet Planetary Health, includes a ranking of the ...
Jan 19, 2021
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Ambient air pollution is the largest environmental health problem in the United States and in the world more generally. Fine particulate matter smaller than 2.5 millionths of a meter, known as PM2.5, was the fifth-leading ...
Nov 15, 2018
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Outdoor air pollution has long been linked to major health conditions such as heart disease, stroke, cancer, asthma and chronic obstructive pulmonary disease. A new study now adds kidney disease to the list, according to ...
Sep 21, 2017
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Exposure to air pollutants—even at levels below World Health Organization air quality guidelines—may trigger a heart attack within the hour, according to a new study from China that found the risks were highest among ...
Apr 22, 2022
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Particulates – also known as particulate matter (PM), suspended particulate matter (SPM), fine particles, and soot – are tiny subdivisions of solid matter suspended in a gas or liquid. In contrast, aerosol refers to particles and/or liquid droplets and the gas together. Sources of particulate matter can be man made or natural. Air pollution and water pollution can take the form of solid particulate matter, or be dissolved. Salt is an example of a dissolved contaminant in water, while sand is generally a solid particulate.
To improve water quality, solid particulates can be removed by water filters or settling, and is referred to as insoluble particulate matter. Dissolved contaminants in water are often collected by distilling, allowing the water to evaporate and the contaminants to return to particle form and precipitate.
Some particulates occur naturally, originating from volcanoes, dust storms, forest and grassland fires, living vegetation, and sea spray. Human activities, such as the burning of fossil fuels in vehicles, power plants and various industrial processes also generate significant amounts of particulates. Coal combustion in developing countries is the primary method for heating homes and supplying energy. Averaged over the globe, anthropogenic aerosols—those made by human activities—currently account for about 10 percent of the total amount of aerosols in our atmosphere. Increased levels of fine particles in the air are linked to health hazards such as heart disease, altered lung function and lung cancer.
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