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How ‘green’ are environmentally friendly fireworks? — ScienceDaily

Fireworks are used in celebrations around the world, including Independence Day in the U.S., the Lantern Festival in China and the Diwali Festival in India. However, the popular pyrotechnic displays emit large amounts of pollutants into the atmosphere, sometimes causing severe air pollution. Now, researchers reporting in ACS’ Environmental Science & Technology have estimated that, […]

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Researchers call for revisions to air-quality monitoring guidelines to consider the sources of emissions — ScienceDaily

Researchers at Scripps Institution of Oceanography at UC San Diego examining 14 years of hospital admissions data conclude that the fine particles in wildfire smoke can be several times more harmful to human respiratory health than particulate matter from other sources such as car exhaust. While this distinction has been previously identified in laboratory experiments, […]

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The dynamics of how aerosols travel from one person to another, under different circumstances — ScienceDaily

In the 1995 movie “Outbreak,” Dustin Hoffman’s character realizes, with appropriately dramatic horror, that an infectious virus is “airborne” because it’s found to be spreading through hospital vents. The issue of whether our real-life pandemic virus, SARS-CoV-2, is “airborne” is predictably more complex. The current body of evidence suggests that COVID-19 primarily spreads through respiratory […]

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How Green Are Electric Vehicles?

The world’s lithium is either mined in Australia or from salt flats in the Andean regions of Argentina, Bolivia and Chile, operations that use large amounts of groundwater to pump out the brines, drawing down the water available to Indigenous farmers and herders. The water required for producing batteries has meant that manufacturing electric vehicles […]

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