Valuation of characteristics of water purity. IV. Classification of pollution of waters based on norms of microbiological, hydrobiological and chemical characteristics determined by numerical methods
Ostrowski, M.
Acta Microbiologica Polonica 25(3): 269-277
1976
ISSN/ISBN: 0137-1320 PMID: 62504 Document Number: 97067
Norms of microbiological (coliform titre, nitrification titre, urea hydrolysis titre, number of bacteria, BOD2 and BOD5), hydrobiological (intensity of photosynthesis, saprobic index, number of algae) and chemical (oxidability, DMDT content) characteristics, determining the ecological quality of water, are suggested. Their taxonomic value has been appraised with the use of numerical methods: centrifugal correlation and principle components, used for the classification of a collection of sites with respect to pollution.