From: nobody@nowhere.com   
      
   On 2015-07-08 7:55 AM, Justin Thyme wrote:   
   > Are alkyl siloxanes at all injurious to the environment?   
      
   My opinion would be that it depends on the quantity involved. In small   
   quantities silicone can be 'safely' injected into the human body because   
   silicone substances are inert. Other inert substances used surgically   
   include polypropylene and Teflon.   
      
   However, because they are not biodegradable or degraded by other than   
   intense heat, a large spill of silicone would make an area unsuitable   
   for agriculture or recreation until it was cleaned up. Silicones are   
   impervious to oxygen or water so a large spill on the ground or into a   
   water way would disrupt life, locally. But the same could be said of   
   other inert substances in large quantity.   
      
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