Reports on Environment and Urban Development for Alaverdy

GEO ALAVERDI: ENVIRONMENT AND URBAN DEVELOPMENT

- 4,0-9,0 times, for manganese - 1,6-4,8 times, for copper 2,0-9,0 times (as well as 14,0 times in Debed River upstream and downstream Ayrum). The average annual concentration of nitrite ion in Debed River have exceeded the MPCs 1,5-3,7 times. The MPC for zinc have also been exceeded in the Debed River, downstream and upstream Ayrum, 2,3-2,5 times. The average annual concentration of sulphate ion in the mouth of Akhtala River has exceeded the permissible norm 6,3 times, for iron - 4,4 times, and for cadmium - 4,0 times. The concentrations for the remaining elements were observed in the limits of normal. The changes in the average annual monthly concentrations of the elements that have regularly exceeded the maximum permissible norms in the samples taken from Debed River in 2008 are shown in the chart below:

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CHAPTER 3: STATE OF THE ENVIRONMENT

Environmental Knowledge for Change