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A well-fitting respirator can reduce the risk. Credit: Shutterstock Silica dust is a very fine dust that is produced when products such as bricks, concrete and pavers are cut or drilled. Artificial stone, which is used primarily for kitchen countertops, is a very strong source of silica dust. Inhaling this dust into the lungs can cause severe long-term damage. This can lead to difficulty breathing, scarring of the lungs (silicosis) and lung cancer. In our recently published report, we estimate that without action, Australian workers will develop over 10,000 lung cancers in the future and nearly 104,000 cases of silicosis over their lifetime due to exposure to silica dust. This is about 1% of all future lung cancers in the Australian adult population. However, banning artificial stone would reduce silica exposure and could prevent 100 lung cancers and nearly 1,000 cases of silicosis over the lifet

Like corn kernels popping in a frying pan, tiny dust grains can jump up and down the asteroid’s surface, according to a new study from physicists at the University of Colorado Boulder. That popcorn-like effect could even help tidy up smaller asteroids, causing them to lose dust and look rough and craggy from space. The researchers published their results July 11 in the journal Natural Astronomy . Their findings could help scientists better understand how asteroids change shape over time – and how these objects migrate through space, sometimes bringing them very close to Earth, said Hsiang-Wen (Sean) Hsu, lead author of the study. the. “The more fine-grained material, or regolith, these asteroids lost, the faster they migrated,” said Hsu, a research associate in the Laboratory for Atmospheric and Space Physics (LASP) at CU Boulder. The research started with some curious photos. In 2020, a NASA spacecraft called OSIRIS-REx traveled more than 1 billion miles to meet the asteroid (191055)

The rugged surface of the asteroid Bennu as seen by NASA’s OSIRIS-REx spacecraft. Credit: NASA/Goddard/University of Arizona Like corn kernels popping up in a frying pan, tiny dust grains can jump up and down the asteroid’s surface, according to a new study from physicists at CU Boulder. That popcorn-like effect could even help tidy up smaller asteroids, causing them to lose dust and look rough and craggy from space. The researchers published their results July 11 in the journal Natural Astronomy . Their findings could help scientists better understand how asteroids change shape over time — and how these objects migrate through space, sometimes bringing them very close to Earth, said Hsiang-Wen (Sean) Hsu, lead author of the study. the. “The more fine-grained material, or regolith, these asteroids lost, the faster they migrated,” said Hsu, a research associate in the Laboratory for Atmospheric and Space Physics (LASP) at CU Boulder. Th

Like corn kernels popping up in a frying pan, tiny dust grains can jump up and down the asteroid’s surface, according to a new study from physicists at CU Boulder. That popcorn-like effect could even help tidy up smaller asteroids, causing them to lose dust and look rough and craggy from space. The researchers published their results July 11 in the journal Nature Astronomy. Their findings could help scientists better understand how asteroids change shape over time and how these objects migrate through space, sometimes bringing them very close to Earth, said Hsiang-Wen (Sean) Hsu, lead author of the study. . “The more fine-grained material, or regolith, these asteroids are lost, the faster they migrate,” said Hsu, a research associate in the Laboratory for Atmospheric and Space Physics (LASP) at CU Boulder. The research started with some curious photos. In 2020, a NASA spacecraft called OSIRIS-REx traveled more than 1 billion miles to meet the asteroid (191055) Bennu, which is about as