Sentence examples for be contaminated at from inspiring English sources

It should be pointed out that the AFM tip is going to be contaminated at the first touch and continue with the following touches, and this contamination can influence the next interaction of the tip with the cells.

He calculated that Manhattan as far north as Central Park would be contaminated at levels similar to those in the permanently closed zone around the Chernobyl power plant.

Decentralized production also reduces food safety risks, as long-distance food can potentially be contaminated at many points on its journey to our plates.

The announcement comes three months after the fast food company was flung into the centre of the horsemeat scandal when ground beef was found to be contaminated at all of its UK locations.

The X component, in particular, is known to be contaminated at mid-latitudes by magnetic fields generated by high-latitude currents during geomagnetically disturbed times, and at low latitudes by the equatorial electrojet.

We need to be concerned that our potable water might be contaminated at low levels by medications, antibiotics and hormones that we take in hopes of improving our health, and by hormones used in agriculture.

Her well was contaminated at the beginning of the year after gas leaked from a well drilled by Cabot.

The researchers, led by Daniel Madigan at Stanford University, said they had found evidence that the fish had been contaminated at "modestly elevated" levels with caesium.

"This would mean you couldn't testify for anyone in the lead cases, because everyone is contaminated at this point," Mr. Burnham said.

There has been no finding, however, that the spinach was contaminated at the company's plant rather than earlier, in the fields where it was grown.

But recently completed genetic fingerprinting has provided the strongest evidence so far that the machines were contaminated at a single source — during their production in Germany.