| Got Porn? |
06-22-2006 06:47 AM |
Toilet water is cleaner than ice machines
Benito Middle School student Jasmine Roberts examined the amount of bacteria in ice served at fast food restaurants.
Her project won the science fair at the New Tampa school, and she hopes to win a top prize at the Hillsborough County Regional Science and Engineering Fair, which starts Tuesday.
The 12-year-old compared the ice used in the drinks with the water from toilet bowls in the same restaurants. Jasmine said she found the results startling.
"I thought there might be a little bacteria in the ice, but I never expected it to be this much," she said. "And I never thought the toilet water would be cleaner."
Her discovery: Seventy percent of the time, the ice had more bacteria than the toilet water.
She placed the samples into sterile containers and tested them at a lab at the H. Lee Moffitt Cancer Center, where she volunteers with a USF professor.
Jasmine found that in four of the five restaurants, the ice that came from the self-serve machines had more bacteria than the toilet water. Three of the five cups of ice from the drive-through windows had more bacteria than the toilet water.
Of the bacteria found in the ice, three out of the five restaurants tested positive for fecal coliform or E. coli, organisms that come from the feces of warm-blooded animals.
Health symptoms related to the presence of coliform include cramps and diarrhea. E. coli can cause intestinal illness and, in rare cases, hemolytic uremic syndrome, a serious kidney condition.
http://my.opera.com/talatkm/blog/show.dml/145074 |
