Index of Oral Presentation

1. Software for: calculation, chemometric, show
2. Balneoli story, geological, factory, productions
• Balneoli, story, origins
• geological composition of the site
• industrial and factory time list
3. What we have to look for?
4. Porto Nuovo of Ostia, a test matrices
5. Sampling design
6. Sampling: period and method
7. Analyses developed on the boat
• why "on boat" measurements?
• ionselective electrodes, NH₃ NO₃
• integrated pH-temperature device
8. Water sampling
• sampling and storage
• sampling: a very heavy work!
9. Total Suspended Solid
• TSS, VSS: filtration
• tridistilled water
• filters standardisation
• obtained values
10. Heavy metals
• heavy metals, standard solutions
• measurements by GFAAS
• preconcentration method
• recovery, accuracy
• obtained values
11. Data from two significative water columns
12. Unfortunately not univocal progress
13. Variables cut
• useful vs useless variables
• three Suspended Solid correlation
• selected variables
• box-whisker
14. Aims of the research
15. Chemometric study
• chemometric method, PCA
• eigenvalues, variance, scree plot
• loadings, with 10 variables
• loadings PC3-PC4
• scores, PC1-PC2
• scores, objects labels and trends
• reduced plot of 3 water-column only
• check by other chemometric method
16. Conclusions
• conclusion about depth and bay distance
• conclusion about water quality