Jan 20, 2009 | 5
Scientists this week urged further research on tungsten— the metal used to make lightbulb filaments, shotgun shells, electrical wires and even wedding bands—to rule out possible health risks to humans and the environment in the wake of studies showing that it may cause reproductive problems in earthworms and stunted growth in sunflowers.
In an article published this week in Chemical & Engineering News, researchers suggest that not enough is known to determine whether tungsten is safe, and that studies need to be conducted to assess how much is in drinking water and the soil – and whether it poses dangers for humans, animals and plants.
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The Dow Chemical Company is the leading producer of polyalkylene glycols (PAGs) used in synthetic fluids and lubricants where petroleum,
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Conventional washing machines cause excessive damage and wrinkling to clothes primarily during the water removal step. With the introduc
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