For example, measurements taken near a highway without road closures could have concentration decreases if overall traffic were reduced, but could have concentration increases if these roads were used as alternate routes to downtown Boston.
Given these correlations, the reference group used in the analysis of an individual POP would have the lowest concentration of that specific POP but could have higher concentrations of other POPs that had a higher risk of type 2 diabetes.
For example, counties with low natural fluoridation prevalence could have high concentrations of naturally occurring fluoride that pose a greater neurodevelopmental risk than high prevalence of low concentrations of naturally occurring fluoride.
For example, some types of leaf tissue could have higher concentrations of PCR-inhibiting secondary metabolites.
On the other hand, an enzyme that has several subcellular locations could have different concentrations in order to function differentially.
The wells situated in the fields could have high concentrations of Cd and other toxic compounds than wells situated in home gardens, due to the extensive use of pesticides and fertilizers in paddy cultivation in the study area, a possible source of Cd.
In the exposure response analysis, we use individual concentration levels in the blood instead of the assigned dose because patients at the same dose could have different concentration levels.
The results indicated that H2S could have a concentration-dependent impact on membrane behavior and affected the obtainable CO2/H2 selectivity.
This could have overestimated concentration values, but the shape of the fallout and the gradients of exposure are not sensitive to this choice.
There were no obvious patterns from our evaluation of local meteorological or air pollution data, but significant rainfall immediately prior to the DNC could have influenced concentration trends in following days.
