Sentence examples for primary contamination from inspiring English sources

Scientists later identified the scene as one of "primary contamination".

Untreated or improperly treated wastewater has often been cited as the primary contamination source of groundwater.

This approach provides a useful modeling scheme for similar exposure and risk analyses where the air soil-groundwater trair soil-groundwater contransportn pathway.

Primary contamination is caused by direct contact with the radioactive substance.

Emmerson said that the "pivotal evidence" that "proved the case against [Lugovoi and Kovtun] beyond reasonable doubt," was the primary contamination traces left by polonium-210 that were discovered around London in places that only the two Russian men had been.

Further research is needed to determine the lowest infectious dose, define what constitutes a true exposure for which antibiotic prophylaxis is warranted (especially in light of possible drug side effects), and determine whether spores delivered in an envelope create a residual risk after the primary contamination event.

Two reports mentioned evidence of cross-contamination from a primary contaminated object to another object or site.

In fact, mercury II) ions are the primary mercury contamination in the aquatic system and the "precursor" form of methylmercury due to bacteria-assisted biotransformation processes.

Colorectal tumors can be large and friable; and, because CK19 is a panepithelial marker present in normal colonic epithelium and primary tumors, contamination of material for molecular analysis by dislodged tissue fragments during specimen processing has to be avoided.

In addition, non-specific binding of the anti-human CD31 antibody was ruled out by using fibroblasts as negative anti-C31-binding controls since fibroblasts are the main cause of primary culture contamination.

In villages far from a facility, the two primary causes of contamination include contaminated water and contaminated breastmilk due to sexual relations.