Yerevan (2012)
Yerevan
Risk Level: 3
| Parameter | Data | Level |
|---|---|---|
| Cr, mkg/l water | 640 | 3 |
| NO2, mgN/l water | 0.046 | 1 |
| NH4, mgN/l water | 0.64 | 1 |
| V, mkg/l water | 215 | 3 |
| NO2, mgN/l water | 0.117 | 1 |
| NH4, mgN/l water | 2.24 | 2 |
| Cr, mkg/l water | 790 | 3 |
| Mn, mkg/l water | 250 | 2 |
| Zn, mkg/l water | 50 | 1 |
| AL, mkg/l water | 3588 | 2 |
| Cr, mkg/l water | 880 | 3 |
| NH4, mgN/l water | 10.82 | 3 |
| Mn, mkg/l water | 850 | 3 |
| NO2, mgN/l water | 0.096 | 1 |
| Disastrous Condition | Critical Condition | Normal Condition |
Risk Level: 1
| Parameter | Data | Level |
|---|---|---|
| Dust, mg/m3 air | 1.2 | 1 |
| NO2, mkg/m3 air | 0.096 | 1 |
| Disastrous Condition | Critical Condition | Normal Condition |
Risk Level: 3
| Parameter | Data | Level |
|---|---|---|
| NO2, mg/m3/air, health | 1.56 | 3 |
| SO2, mg/m3 air, health | 3.047 | 3 |
| Disastrous Condition | Critical Condition | Normal Condition |
Ecological Disaster in Yerevan
EcoLur
Yerevan, the capital of the Republic of Armenia, is in environmental disaster caused by the pollution of water recourses and atmosphere in the city. Under the annual report by “Environmental Impact Monitoring Center” SNCO for 2012, the average annual concentration of dust and nitrous oxide exceeded the MPCs by 2.4 times. Thus, the concentration of dust made up 1.2 mg/m3, nitrous oxide - 0.096 μg/m3. Under EcoLur’s Ecological Risk Model, the condition of air is within standards, but the emissions of nitrous oxide and sulfur dioxide are disastrously hazardous for health. The maximum concentration of nitrous oxide in the atmosphere of Arabkir community territory for 29 November 2012 was 1.560 mg/m3, sulfur dioxide – 3.047 mg/m3 on 30 July.
The water resources in Yerevan are also in disastrous condition. Under the annual report by “Environmental Impact Monitoring Center” SNCO for 2012, the average annual concentration of chromium in Yerevan Lake exceeded MPC by 12.8 times, nitrite ion – 4.6 and ammonium ion – 3.2. Thus, the concentration of chromium in Yerevan Lake made up 640 μg/l, nitrite ion – 0.046 mgN/l, ammonium ion – 0.64 mgN/l. Under EcoLur’s mode, such concentration of chromium is disastrous for the lake.
The environmental disaster in Getar river estuary flowing through Yerevan is conditioned with the high pollution with vanadium, chromium, ammonium ion and manganese. Under the annual report by “Environmental Impact Monitoring Center” SNCO for 2012, the average annual concentration of vanadium exceeded MPC by 21.5 times, chromium – 15.8, nitrite ion – 11.7, ammonium ion – 11.2, manganese – 5.0 and zinc – 1.1. In this section of the river the concentration of vanadium made up 215 μg/l, chromium - 790 μg/l, nitrite ion - 0.117 mgN/l, ammonium ion - 2.24 mgN/l, manganese - 250 μg/l and zinc - 50 μg/l.
The most polluted section of the Hrazdan River is downwards Yerevan – the section near Darbnik Village. Under the annual report by “Environmental Impact Monitoring Center” SNCO for 2012, the average annual concentration of aluminum exceeded MPC by 89.7 times, chromium - 17.6 , ammonium ion – 54.1, manganese – 17.0 and nitrite ion – 9.6. Thus, the concentration of aluminum made up 3588 μg/l, chromium - 880 μg/l, ammonium ion -
10.82 mgN/l, manganese - 850 μg/l and nitrite ion - 0.096 mgN/l.
The disastrous condition of this section of the Hrazdan River has been detected with EcoLur’s Ecological Risk Model.