A scree plot indicated that little other information could be acquired from further additions.
The trends observed at the pilot-scale level were also evident in this combined data set.
The samples that made up group I in Fig. 1 were still found in the lower right of the graph along with the majority of the early stage full-scale facility samples.
Samples that made up groups II and III still clustered into the upper left. The early samples from the full-scale composting of nitrogen amended or unamended MSW (F/MSW0/ and +) fell into the same region as early samples of material composted at the pilot-scale facility.
When this amended or unamended MSW was composted at the full-scale and cured at the pilot-scale, it clustered with
the other older materials sampled.