Sentence examples for background levels of lead from inspiring English sources

We assessed background levels of lead in each deer from shank meat, collected well away from any potential bullet contamination.

The study, however, noted that there was a mean background level of lead of 0.93 ± 0.13 ppm in the salsa.

However, background levels of blood lead among Senegalese children were estimated in 2006 by Diouf et al. (2006).

Lee Mauldin, a researcher in the University of Colorado Boulder's Department of Atmospheric and Oceanic Sciences, found both in the air above Finland's boreal forest, where background levels of sulfuric acid (H2SO4) led to the discovery of a new atmospheric oxidant.

Another important factor in identification of candidates for further development as blood-based biomarkers for cancer diagnosis is the potential for background levels of methylated sequences in plasma of healthy subjects to lead to false positive tests [ 19].

For example, at one airport where many airplanes used avgas, average and maximum air lead levels were 0.030 and 0.302 μg/m, respectively, versus background levels of 0.007 and 0.018 μg/m (Environment Canada 2000).

"We still find background levels of DDT and chlordane," he explained.

A non-smoker group provided background levels of BoE.

And the levels found in the showerheads were "more than 100 times the background levels of municipal water".

Only background levels of staining were observed (data not shown).

Background levels of genetic alterations.