Sentence examples for average concentration over from inspiring English sources
These emissions contribute an additional 8 to 15 parts per billion of ozone in the springtime, often nudging concentrations of the pollutant above the federally accepted maximum of 75 parts per billion measured as an average concentration over eight hours, Dr. Lin said in an interview by phone.
Tail activity was computed as the average concentration over 1 min starting at 2 min, 40 s post-injection.
We took average concentrations at steady state as the average concentration over one dosing interval after the system reached steady state.
By using these passive samplers, an atmospheric, time-weighted average concentration over an exposure period can be compared with exposure limits and compliance measurements through in situ calibration.
The former unlikely represents the average concentration over the same volume of air, making it difficult to obtain a perfect match between the two methods.
Classical chemical kinetics typically assumes that diffusion rates are relatively high, so that spatial proximity of molecules depends only on the average concentration over distances much greater than the proximity required for reaction.
Passive dosimeter sampling is found to be appropriate for evaluating the stationarity of contaminant plumes as well as for estimating average concentrations over time when the plume has fully developed.
The three exposure metrics are expressed as average concentrations over their respective time periods (nanograms per gram lipids).
Average daily concentrations and average concentrations over the study period were comparable between top and bottom grouped counties for most rankings.
The results show clearly that the average concentrations at the interfaces of the two larger particles are higher than the average concentrations over the whole surface.
In our study, we used time-weighted average concentrations (over approximately 4 hr) that did not capture exposures to high levels of naphthalene from local sources.
