Sentence examples for apportionment method from inspiring English sources

For entries without a specified campus, we apportioned the remaining undetermined entries using a new apportionment method this year.

By using the 3D Community Multiscale Air Quality CMAQQ) chemical transport model combined with the Process, Age, and Source Region Chasing Algorithm (PASCAL) source and process apportionment method, Liu et al. (2013) estimated that approximately 53 % of the observed BC was transported from northern China.

The MBO-derived organosulfate has the potential to serve as an SOA tracer for a source apportionment method under further investigation.

The larger estimated effect for Barcelona may be attributable to greater population density and subsequent exposure to traffic; differences in the mobile source mix, especially the high proportion of diesel vehicles; and/or the source apportionment method itself.

This result indicates that variations in choice of research group or source apportionment method have only a small effect on variations in the RR estimates, relative to the variations in RR caused by different source components.

However, the magnitude of the background contribution agreed with those (50 65% at European urban background-sites) reported by Querol et al. (2004), who used a source apportionment method.

Several source apportionment methods were utilized for RoMANS, including the Trajectory Mass Balance (TrMB) Model, a receptor-based method in which the hourly measured concentrations are the dependent variables and the residence times of back trajectories in several source regions are the independent variables.

As a consequence, the U.S. Environmental Protection Agency sponsored a set of studies to evaluate alternative apportionment methods produced by various investigators.

The goal was to evaluate the consistency of the various source apportionment methods in assessing source contributions to daily PM2.5 mass mortality associations.

These results provide supportive evidence that existing PM2.5 source apportionment methods can be used to derive reliable insights into the source components that contribute to PM2.5 health effects.

To date, we are aware of only one study that has applied source apportionment methods to examine associations between PM2.5 sources and hospitalizations (Lall et al. 2011).