The phrase "apportionment on" is correct and can be used in written English.
It means the act of dividing or allocating something among a group or individuals. An example sentence using "apportionment on" could be: "The committee made an apportionment on the budget, deciding how much each department would receive."
The effect of the imputation of these apportionments on the ability of epidemiologic methods to evaluate the health effects associated with various PM components is uncertain.
In contemporary America, the apportionment of political power on the basis of population, the use of race in the drawing of legislative districts and racial bloc voting have prompted people to inflate their numbers.
The Clinton Administration wanted to use statistical sampling for the actual enumeration on which apportionment of congressional seats is determined.
Computing their concentrations relied on the apportionment of measurements from other substances.
Additional file 1 also provides detail on the apportionment of spatial vs. temporal variation in the raw Year 2 concentrations.
The indirect component is based on an apportionment of the overall costs of running the facility to individual KEPH services.
For example, the work of the EPA Workshop on Source Apportionment of Particulate Matter Health Effects summarized the results of time series analyses of health effects with source factors [ 24].
A workshop of several research teams on source apportionment of particulate matter health effects found that the sulfate-related component of fine particles was most consistently associated with daily mortality (Thurston et al. 2005).
"It's not 15% on the sale price, it's 15% on the agreed apportionment of funds to projects, that come from the asset recycling process," he said.
