Post a comment on the text below

6.1.1        Changes over time

The main source of organic pollution in Armenia is  untreated or insufficiently treated waste water, which, due to the lack of treatment plants, is emitted into the rivers. There are only six water treatment plants in Armenia, with only mechanical treatment where organic waste is not processed. From 2008-2017 the BOD and ammonium concentration in rivers increased by 18 % and 72 %, respectively (Hata! Başvuru kaynağı bulunamadı.). An increase was mainly observed for at sites below settlements. Emission in the less populated areas have not changed a lot in this period. The River Hrazdan is one of the longest and most polluted rivers in Armenia. The effect of the influences of untreated wastewater is significant, especially at one highly polluted monitoring site located downstream, which is the nearest and most impacted site after Yerevan city, the capital of Armenia, which is home to around 1 million inhabitants. The pollution level of this site has a major impact on the country average, resulting in both higher absolute levels of pollution and a larger increase over time. This is particularly evident for ammonium.

You cannot post comments to this consultation because you are not authenticated. Please log in.