Sentence examples for introduction of contamination from inspiring English sources

An introduction of contamination within the schools, between intervention and control classes, may have played a role in this, weakening or diluting the intervention effects.

Because of the potential for introduction of contamination during collection and transport, water from couriers is considered by the WHO to be an unimproved water source.

False positives can occur due to introduction of contamination during sample collection, DNA extraction, and PCR set-up, resulting from the presence of fungi in the environment or fungal PCR product carry-over.

Efforts were made to avoid introduction of extraneous contamination.

An alternative explanation for the higher amount of mouse DNA in the purified samples could be the introduction of mouse DNA contamination during sample processing.

All of these - levelling, introduction of foreign materials and contamination - are potentially destructive of archaeological remains, as are the many cuttings and trenches detailed, the heavy vehicle wheel ruts, the earthmoving and the fuel seepages.

However, these properties are subjected to change during drilling operations due to variation in mud maintenance and the introduction of drilling solids and contaminations.

However, since WGA has a potential risk of contaminations and the introduction of unwanted mutations [ 13- 15], WGA may require careful evaluation of the results.

Differences in feed processing may, for example, result in different levels of cross-contamination (after introduction of a ban on MBM in ruminant feed).

This information will also appeal to the wide audience and institutions responsible to regulate the introduction of waste into Lagoons knowing that the trend in levels of contamination varies at different climatic/environmental conditions.

This will avoid cross contamination and the introduction of microorganisms or viruses.