Research on the quality of the Po River and its tributaries in the region of Cremona-Casalmaggiore mountain. III. 1972-1973
Bellelli, E.; Sansebastiano, G.; Bracchi, U.
L'Ateneo parmense. Acta bio-medica organo della Societa di medicina e scienze naturali di Parma 47(4): 455-478
1976
ISSN/ISBN: 1123-7325 PMID: 1021141 Document Number: 98954
The analises of water samples collected during the second research period, year 1972-73, in the tract of the river Po from Cremona to Casalmaggiore partly confirmed the results obtained in the first period (1971-72). However we have to consider that during this second research year the hydrological conditions of the river Po have been very similar to the average ones of the last 30-40 years. The fact is particularly important and it permitted us to better value all those parameters which feel the effects of the flow variations. Also in this second period the different parameters didn't present significative variations upstream and downstream Cremona and at Casalmaggiore except the turbid load as happened in 1971-72 period. As far as the water qualities are concerned no significative differences have been registered between the two paeriods; in fact the most part of the physioco-chemical parameters keep suitable levels for fish life and drinking purposes; meanwhile, except some particular situations, the microbiological indexes exceed the limits for bathing waters fixed by the W.Q.C. and by the Italian Ministry of Health.