AIR POLLUTANTS EXCEED MAXIMUM PERMISSIBLE CONCENTRATION IN ARMENIAN CITIES’ ATMOSPHERE
ARKA
June 16
YEREVAN
Air pollutants slightly exceed the maximum permissible concentration in
Armenian cities’ atmosphere and rivers, National Statistical Service of
Armenia says referring to the Nature Protection ministry’s information.
The monitoring has been carried out in Yerevan, Ararat, Alaverdi,
Gyumri, Vanadzor, Hrazdan and Tsakhkadzor.
In particular, an average monthly dust concentration in Yerevan
atmosphere reduced 1.5 times, nitrogen dioxide 1.3 times and surface
ozone grew 1.6 times in April 2008, compared with March.
In Gyumri, the second biggest city of Armenia, dust in air exceeded
1.8 times maximum permissible concentration.
In industrial city of Hrazdan, cement dust exceeds 3.8 times maximum
permissible concentration and in Ararat 5.4 times.
The monitoring in Tsakhkadzor found out insufficient concentration
of dioxide sulfur and nitrogen dioxide 16.5 times and 21.1 times.
Ammonium ion in 35 rivers as well as Akhuryan, Aparan, Azat and
Kechut water reservoirs, Lake Yerevan exceeded maximum permissible
concentration 0.43 to 3.31 mg per cubic decimeters.