Texas Agricultural Extension Service â¢ Zerle L. Carpenter, Director â¢ The Texas A&M University System â¢ College Station,Texas. Porcine Reproductive and Respiratory. Syndrome (PRRS) is rapidly gaining importance. as one of the most economically significant dis-. eases to keep out of Texas swine herds. In late 1992, a large swine herd in Texas. became infected with PRRS virus. The results.
If you take dietary supplements, chances are you are also taking Silicon Dioxide which is often contained within most supplements. Silicon Dioxide is an anti-caking agent that may account for up to 3% of a vitamin formula.
Acute toxicity studies demonstrate that silicon dioxide and silica gel have moderate to low acute toxicities. An acute oral LD,, stufdy (rat) with silicon dioxide resulted in an LD,, value of 3160 mg/g 'I; this value is considered Toxicity Category 111. gel produced moderate to low toxicity for a Toxicity Category of 111. No test animals in an acute inhalation study died as a result of exposure to 40% silica gel.