A research of atmospheric precipitation contamination in various districts of erevan city
A chemical content of atmospheric precipitations at six Erevan districts within 2005-2009 is studied. Acidity, dissolved oxygen content, hydrocarbonates, sulphates, nitrates, ions of ammonia, natrium, potassium, magnesium, calcium are measured in atmospheric precipitations samples. A contamination level of air basinby chemical composition of atmospheric precipitations is determined.