In other source apportionment studies that included both non-organic trace elements on PM and gaseous pollutants [17 20], the gaseous species usually were non-VOCs (such as CO, SO2, and NO).
"The Court actually affirmed the legality of sampling" for purposes other than apportionment, Daley said--namely, reshaping congressional districts within a state as well as distribution of federal money to the states.
Factor analysis and other source apportionment techniques (e.g., Thurston et al. 2005) that have been used to investigate the association between particles and other health outcomes may be used to estimate exposure based on sources for birth outcomes research.
Analysis of the air mass trajectory histories and comparisons with the results of other source apportionment techniques may provide further support for the interpretation of the OA factors [ 22, 41, 63, 72, 91, 92].
These findings are consistent with other source apportionment studies indicating that diesel vehicles significantly contributed to EC in the United States during the period of the study, particularly in urban areas (Schauer 2003).
Other studies, using source apportionment techniques, have also reported associations with sulfate factors (e.g., Ito et al. 2006).
In other words, Mr. Wasser said, financial apportionments that are not settled at closing -- including those that may occur in the future -- are generally considered waived.
Computing their concentrations relied on the apportionment of measurements from other substances.
In areas with significant sources of other pollution, such as the SoCAB, apportionment can be a challenge.
For example, if there were 100 entries for the University of Michigan, Ann Arbor, and only two for both UM Dearborn and UM Flint, we took this into account when apportioning the unspecified campuses, by using this proportion as the other half of our Who's Who apportionment equation.
