Air Pollution Levels in China Reach 20 Times the Safe Limit for Human Health

October 13, 2014 by  
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China is known for having some of the world’s worst air pollution , but air quality in the country recently hit a new high at 20 times greater than the safety limit for human health. The Guardian reports heavy smog is enveloping parts of northern China and causing visibility levels to drop as measurements of small (PM 2.5) pollutant particles are rising. The particles are dangerous because they can embed themselves deep in the lungs, and they’ve reached more than 500 micrograms per cubic meter in parts of Hebei, near Bejing. The World Health Organization’s level for maximum health exposure to PM2.5 particles is 25 micrograms per cubic meter, and current levels are 20 times higher. The situation has led authorities to issue an “orange alert.” Read the rest of Air Pollution Levels in China Reach 20 Times the Safe Limit for Human Health Permalink | Add to del.icio.us | digg Post tags: air pollution , bejing , china , coal , fossil fuels , global warming , Health , hebei , particulate , pm2.5 , pollutant , quality , smog , toxic , WHO , World Health Organization

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Air Pollution Levels in China Reach 20 Times the Safe Limit for Human Health

The World’s First 3-D Printed Rocket is Ready for Lift-Off

October 13, 2014 by  
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Is there anything 3D printers can’t do? From internal organs to cars , 3D printers around the world have been churning out just about anything you can imagine. But now a British team of amateurs is about to step into virgin 3D printer territory by launching the world’s first 3D printed rocket. NASA has already been printing rocket parts, but this is the first time that an entire rocket has been made using the technology. Read the rest of The World’s First 3-D Printed Rocket is Ready for Lift-Off Permalink | Add to del.icio.us | digg Post tags: 3d printed , 3D printed rocket , 3D rocket , first 3D rocket , LOHAN , LOHAN 3d printed rocket , Special Project Bureau , The Register 3D Printed Rocket , The Register 3D rocket , The Register LOHAN , The Register Special Project Bureau , The Registered 3d Printed Rocket , World’s first 3D printed rocket , world’s first 3D rocket

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The World’s First 3-D Printed Rocket is Ready for Lift-Off

California EPA Sets 1st in U.S. Goal For Pollutant Chromium 6

August 1, 2011 by  
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Scientists studying chromium photo by Argonne National Laboratory Chromium 6 or Hexavalent chromium is a carcinogenic pollutant made famous by Erin Brockovich. California’s new goal for the pollutant, set by the state’s Environmental Protection Agency, was set on Wednesday at 0.02 parts per billion. This is the level of the element that the state believes is not likely to cause a significant health risk in drinking water. Environmentalists supported the goal. The only shortcoming w… Read the full story on TreeHugger

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California EPA Sets 1st in U.S. Goal For Pollutant Chromium 6

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