Pollution

Pollution News -- ScienceDaily Pollution articles. Air pollution, water pollution, noise pollution, soil pollution and more. Read current events articles on pollution, pollution prevention and pollution control.

  • Weathering rates for mined lands exponentially higher than unmined sites
    on September 25, 2018 at 6:04 pm

    A new study found a dramatic increase in the chemical weathering rates of mined landscapes, which are melting away bedrock up to 45 times faster than unmined areas. The weathering has global consequences for the cycling of sulfur, a key nutrient for all life forms. […]

  • Lifestyle intervention may mitigate weight gain due to ubiquitous contaminant
    on September 25, 2018 at 3:52 pm

    A new study finds that perfluoroalkyl and polyfluoroalkyl substances (PFASs) are associated with increases in weight, but exercise and diet may reduce the obesogenic effects of these environmental contaminants. […]

  • Indoor HEPA filters significantly reduce pollution indoors when outside air unhealthy, study finds
    on September 25, 2018 at 3:00 pm

    Outdoor air pollution is a major contributor to indoor air pollution -- but high-efficiency particulate air (HEPA) filters used in the home significantly reduce fine-particulate matter in the air compared with non-HEPA air filters, according to a new study. […]

  • Light pollution makes fish more courageous
    on September 21, 2018 at 3:34 pm

    Artificial light at night also makes guppies more courageous during the day, according to a new behavioral study. […]

  • Mineral weathering from thawing permafrost can release substantial CO2
    on September 19, 2018 at 3:58 pm

    The amount of carbon dioxide released from thawing permafrost might be greater than previously thought, according to a new study by ecologists. The research is the first to document the potential for substantial contributions of CO2 from thawing permafrost to the atmosphere through an inorganic process called mineral weathering. […]

  • Origami inspires highly efficient solar steam generator
    on September 19, 2018 at 3:14 pm

    Water covers most of the globe, yet many regions still suffer from a lack of clean drinking water. If scientists could efficiently and sustainably turn seawater into clean water, a looming global water crisis might be averted. Now, inspired by origami, the Japanese art of paper folding, researchers have devised a solar steam generator that approaches 100 percent efficiency for the production of clean water. […]

  • Air pollution may be linked to heightened dementia risk
    on September 18, 2018 at 11:53 pm

    Air pollution may be linked to a heightened risk of developing dementia, finds a London-based observational study. The associations found couldn't be explained by factors known to influence the risks of developing the condition, say the researchers. […]

  • Green space near home during childhood linked to fewer respiratory problems in adulthood
    on September 18, 2018 at 10:05 pm

    Children who have access to green spaces close to their homes have fewer respiratory problems, such as asthma and wheezing, in adulthood, according to new research. In contrast, children who are exposed to air pollution are more likely to experience respiratory problems as young adults. […]

  • Searching for clues on extreme climate change
    on September 18, 2018 at 12:20 pm

    Nearly 13,000 years ago, pines in southern France experienced a cold snap, which scientists have now reconstructed. The study about the consequences of a drastic climate change event in past and its implications for our future. […]

  • Tropics are widening as predicted by climate models, research finds
    on September 17, 2018 at 7:36 pm

    Scientists have observed for years that Earth's tropics are widening in connection with complex changes in climate and weather patterns. But in recent years, it appeared the widening was outpacing what models predicted, suggesting other factors were at work. But a new paper finds that the most up-to-date models and the best data match up reasonably well. […]

  • Air pollution affects thyroid development in fetuses
    on September 17, 2018 at 2:13 pm

    Soot and dust alters thyroid development in fetuses before they are born in smoggy cities, raising concern about health impacts later in life, new research shows. Scientists focused on more than 2,000 kids in smoggy Southern California as part of USC's ongoing Children's Health Study. […]

  • First evidence that soot from polluted air is reaching placenta
    on September 16, 2018 at 7:27 pm

    Evidence of tiny particles of carbon, typically created by burning fossil fuels, has been found in placentas for the first time, in new research. […]

  • Study shows toxic effects of oil dispersant on oysters following deepwater horizon spill
    on September 13, 2018 at 8:00 pm

    A new study finds that oysters likely suffered toxic effects from the oil dispersant Corexit® 9500 when it was used to clean up the 2010 Deepwater Horizon oil spill. Researchers determined this by comparing the low levels of toxicity of oil, the dispersant and a mixture of the two on Eastern oysters. […]

  • Trees reveal the evolution of environmental pollution
    on September 13, 2018 at 6:20 pm

    Chemical analysis of tipuana tree rings and bark by Brazilian researchers shows falling levels of heavy metal pollution in the air of São Paulo City, Southern Hemisphere's largest metropolis. […]

  • Most fire in Florida goes undetected
    on September 13, 2018 at 5:45 pm

    A new study indicates that common satellite imaging technologies have vastly underestimated the number of fires in Florida, detecting only 25 percent of burned area. […]

  • Air purifiers may benefit fetal growth
    on September 12, 2018 at 5:35 pm

    A new study reveals fetal growth may improve if pregnant women use portable air purifiers inside their homes. […]

  • Carbon nanodots do an ultrafine job with in vitro lung tissue
    on September 11, 2018 at 3:45 pm

    Epidemiological studies have established a strong correlation between inhaling ultrafine particles from incomplete combustion and respiratory and cardiovascular diseases. Still, relatively little is known about the mechanisms behind how air particulates affect human health. New work seeks to provide the first model of how ultrafine carbon-based particles interact with the lung tissues. Researchers created a 3D lung cell model system to investigate how carbon-based combustion byproducts behave as they interact with human epithelial tissue. […]

  • Evaluating the contribution of black carbon to climate change
    on September 11, 2018 at 1:58 pm

    Scientists have developed an improved model to accurately assess the effect of black carbon on Earth's atmosphere. […]

  • Analyzing roadside dust to identify potential health concerns
    on September 10, 2018 at 8:06 pm

    Findings from studies of traffic-related abrasion particles point to tires, brake pads, and road materials as significant sources of environmental pollution with potential health implications. […]

  • US wildfire smoke deaths could double by 2100
    on September 10, 2018 at 6:24 pm

    A new study simulating the effects of wildfire smoke on human health finds continued increases in wildfire activity in the continental United States due to climate change could worsen air quality over the coming decades. […]

  • Large trucks are biggest culprits of near-road air pollution
    on September 10, 2018 at 3:12 pm

    A new study reveals large diesel trucks to be the greatest contributors to harmful black carbon emissions close to major roadways, indicating that vehicle types matter more than traffic volume for near-road air pollution. […]

  • Cover the U.S. In 89 percent trees, or go solar
    on September 7, 2018 at 1:15 pm

    Researchers found that using bio-sequestration to capture carbon produced by US coal-fired plants even after carbon capture and storage would require using 62 percent of the nation's arable land for that process, or 89 percent of all US land with average forest cover. In comparison, offsetting the amount of carbon produced by manufacturing solar panels is 13 times less land, making it a far more viable option. […]

  • New study shows ways to maximize temperature-lowering benefits of Chicago's green roofs
    on September 6, 2018 at 4:33 pm

    Researchers have created an integrated framework to identify which neighborhoods would benefit most from green roofs -- and provide city officials with a strategic approach to ensure the best return on their investment to beat the heat. […]

  • Risk gene for Alzheimer's may aggravate neurological effects of air pollution in children
    on September 6, 2018 at 2:13 pm

    There is growing evidence that exposure to air pollution adversely affects cognitive and behavioral development in children. However, the mechanisms underlying this association are, as yet, unknown. […]

  • Reducing nitrogen inputs prevents algal blooms in lakes
    on September 4, 2018 at 3:47 pm

    For decades, experts have debated whether reducing the amount of nitrogen flowing into lakes can improve water quality in the long-term, even though blue-green algae can bind nitrogen from the air. Scientists have now shown that the amount of atmospheric nitrogen bound by blue-green algae is far too small to be used as an argument against the ecologically necessary reduction of nitrogen inputs. […]

  • Alpine ecosystems struggle to recover from nitrogen deposition
    on September 4, 2018 at 3:46 pm

    A new research study finds that degraded alpine ecosystems showed limited recovery years after long-term inputs of human-caused nitrogen air pollution, with soil acidification and effects on biodiversity lingering even after a decade of much lower nitrogen input levels. […]

  • Engineered sand zaps storm water pollutants
    on August 30, 2018 at 12:48 pm

    Engineers have created a new way to remove contaminants from storm water, potentially addressing the needs of water-stressed communities that are searching for ways to tap the abundant and yet underused source of fresh drinking water. The mineral-coated sand reacts with and destroys organic pollutants, providing a way to help purify storm water percolating into underground aquifers, creating a safe and local reservoir of drinking water for parched communities. […]

  • Drought increases CO2 concentration in the air
    on August 29, 2018 at 5:32 pm

    Researchers have shown that during drier years the concentration of carbon dioxide in the atmosphere rises faster because stressed ecosystems absorb less carbon. This global effect is so strong that it must be integrated in the next generation of climate models. […]

  • China is hot spot of ground-level ozone pollution
    on August 29, 2018 at 3:55 pm

    In China, people breathe air thick with the lung-damaging pollutant ozone two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new assessment. By one metric -- total number of days with daily maximum average ozone values (8-hour average) greater than 70 ppb -- China had twice as many high ozone days as Japan and South Korea, three times more than the United States, and six times more than Europe. […]

  • Air pollution can put a dent in solar power
    on August 29, 2018 at 3:55 pm

    Air pollution, especially in urban areas, can significantly reduce the power output from solar panels, and needs to be considered when design solar installations in or near cities. […]