title: [Studies on the water quality of the river Po and its tributaries between Monte Cremona and Casalmaggiore. II. Period 1971-2].
abstract: The results relating to the research carried out on the river Po upstream and downstream Cremona town, at Casalmaggiore and at the mouths of the right side tributaries Arda-Ongina and Taro in the period 1971-72 are reported in the present note. The samplings took place once every month and on the same day flow measurements were effected by the Magistracy of the river Po in the five stations. The results of this first series of sampling have shown a good stability of the water quality of the river Po, in the different seasons and in the different hydrological conditions. No significative differences were poi nted out for the most part of the determined parameters between the stations upstream and downstream Cremona and Casalmaggiore, except the turbid load (turbidity, suspended matter at 105 degrees C, setteable solids) which presented at Casalmaggiore an average value absolutely higher than the calculated one which was achieved considering concentrations and river flow at Cremona and at the mouths of Arda-Ongina and Taro. With few exceptions the water quality keeps a good level for fish life and its actual pollution degree let us think it possible to improve the situation in a short time. Only microbiological parameters are excepted, as they exceed the proposed limits for recreation and bathing uses (W.Q.C.).
mesh_terms: D002712:Chlorides / Q000032:analysis; D007558:Italy; D008628:Mercury / Q000032:analysis; D009136:Muscular Dystrophies / Q000175:diagnosis*; D010758:Phosphorus / Q000032:analysis; D012189:Retrospective Studies; D012621:Seasons; D013696:Temperature; D014871:Water Microbiology; D014876:Water Pollution / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
chemical_list: D002712:Chlorides; D010758:Phosphorus; D008628:Mercury
vernacular_title: Indagini sulla qualità delle acque del fiume Po e dei suoi affluenti nel tratto Monte Cremona-Casalmaggiore.  Nota II: Periodo 1971-2