ORGANIC SUBSTANCES AND THEIR COMPLEXATION CAPACITY IN SMALL RIVERS BETWEEN PRUT AND NISTRU

摘要

The organic matter in small river's water between Prut and Nistru (Girla Mare, Camenca, Vladnic, Caldarusha, Chuhur, Draghishte, Lopainic, Vilia, Nirnova - left tributaries of Prut, and Raut, Raut, Bic, Botna - right tributaries of Nistru) expressed through COD-Cr and COD-Mn shows comparatively high values in droughty 2000 year (11-43 mg/dm~3 O and 1, 4-9, 6 mg/dm~3) but 1, 1-1, 8 times lower than in 1995-1998 Nitrogen compounds, especially those inorganic (NO_2~-, NO_3~-, NH_4~-) varie a lot from hundredth to tenth mg/dm~3 in function of anthropic impact Downstream the evacuation of unpurified or insufficient purified sewage waters the content of NO_2~- in the recipient river can reachw tens mg/dm~4 (r. Bic, downstream Chishinau, r.Raut downstream Balt etc.)