CONŢINUTUL AMONIACULUI NEIONIZAT ÎN APELE DIN RÂUL PRUT ŞI DIN AFLUENŢII LUI DE STÂNGA

Maria SANDU,* Anatol TĂRÎŢĂ,* Viorica GLADCHI, Galina DRAGALINA *Institutul de Ecologie şi Geografie Universitatea de Stat din Moldova

Аннотация

CONTENT OF NON-IONIZED AMMONIA IN THE WATERS OF THE PRUT RIVER AND ITS LEFT TRIBUTARIES 

The presence in natural waters of non-ionized ammonia, which is a mineral form of nitrogen, leads to the essential increase of the toxicity of the aquatic environment and represents a real danger for aquatic biodiversity. Its main sources are the economic activities in the republic (yeast, beer, soft drinks, milk, meat and fish processing, leather, animal complexes, etc.) and wastewaters, which discharge into aquatic objects without sufficient purification or even untreated. The Prut River, being also a transboundary water artery, represents in this case a collector in which the polluting substances are stored, which contributes to the diminution of the water quality. The present study includes the evaluation of the content of non-ionized ammonia (NH3) in the waters of the Prut River and its left tributaries, based on existing information in scientific publications, on the total concentration of ammonium compounds (NH3 + NH4+) based on pH. 

Keywords: non-ionized ammonia, water pollution, the Prut River, wastewater