One (2.8%) bur in negative control group and all burs in positive control group showed contamination
. In test groups, 27(77.1%), 29(82.8%), 27(77.1%) and 24(68.5%) burs showed contamination
in groups 1, 2, 3 and 4, respectively.
So far, no contamination
was detected inside either car.
Even so, Xinjiang cotton is high in contamination
- especially the filmy plastic pieces that cause headaches to spinners.
The first step is to understand the makeup of the contamination
. Many analytical tools exist to determine the ionic distribution within the sample.
The risk for intraoperative contamination
is increased by inadequate manipulation during the preparation of the operative field, especially if surgical instruments at this point are unpacked and prepared on the operating table [13, 14].
That's according to the annual "Joint Groundwater Monitoring and Contamination
Report" published last week by the Texas Groundwater Projection Committee, a collection of nine state agencies and a groundwater district group.
The results of this study showed considerable bacterial and fungal contamination
particularly in pumice slurry may be due to the use of non-sterile water to mix the pumice powder, Gram-positive bacilli and fungi were present in the samples of pumice powder, rag wheel and polished dentures.
But prison operator Sodexo, which began life as a catering firm, said investigators found no evidence of contamination
"We do have some wells within the contamination
plume which show low levels of contamination
for chlorinated solvents in the untreated water.
Sample testing alone is not sufficient to exclude contamination
Suprapubic aspiration and straight catheter technique are the best methods to avoid contamination
but they are invasive.