(Phys.org) —The discoloration of some pigments used in impressionist paintings has been observed since the 19th century. Belgian researchers have now investigated how the colors of chrome yellow pigments change on both ...
Analytical Chemistry
Oct 8, 2013
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New results from the Chemistry & Camera (ChemCam) instrument on NASA's Curiosity rover provide further details about the ancient environment of Yellowknife Bay on Mars. Using data from ChemCam, as well as images from Mastcam ...
Space Exploration
Oct 29, 2014
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Geochemist Alexandra Phillips has sulfur on her mind. The yellow element is a vital macronutrient, and she's trying to understand how it cycles through the environment. Specifically, she's curious about the sulfur cycle in ...
Earth Sciences
Nov 16, 2023
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119
High loadings of fine particulate matter (PM2.5) during haze are mostly produced from the chemical reactions of reactive gas precursors, including sulfur dioxide (SO2), nitrogen oxides (NOx), ammonia (NH3), and volatile organic ...
Environment
Apr 13, 2020
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8
With the help of the Canadian Light Source (CLS) at the University of Saskatchewan (USask), researchers from the University of Guelph (UofG) have learned more about an emerging pollutant that is prevalent in groundwater across ...
Environment
Apr 10, 2024
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41
Despite ongoing global pollution, researchers have discovered that levels of mercury in seabirds off the coast of B.C. have remained relatively stable over the past 50 years. Surprisingly, mercury in seabirds is now actually ...
Environment
Dec 16, 2016
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98
If you are a blonde like me and enjoy laps in a swimming pool, you may have noticed your hair acquires a green tint after frequent swims in chlorinated water.
Other
Sep 20, 2023
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An analysis of sulfide ore deposits from one of the world's richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate ...
Earth Sciences
Dec 10, 2012
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While the popular Netflix movie "Don't Look Up" has raised public consciousness to the potential catastrophic effects of asteroid impact to planet Earth, new research sheds light on how the Chicxulub impact 66 million years ...
Earth Sciences
Mar 21, 2022
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107
Tiny particles are pivotal to climate change, public health, and nanotechnology. A significant fraction of these particles are aspherical, yet scientists must routinely assume the particles are spherical to interpret many ...
Condensed Matter
Sep 8, 2009
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