The Center for Hydrometeorology and Monitoring presented data on atmospheric air quality in Yerevan from October 29 to November 4.
Dust levels exceeded the maximum permissible concentration in the Center on October 29 and 30 and November 1-3; in Arabkir on October 29 and 31; in Nor Nork on October 29 and November 3; and in Shengavit on October 29 and November 1 and 3.
Nitrogen dioxide levels exceeded the maximum permissible concentration in the Center from November 29 to 3 and in Arabkir, Nor Nork, and Shengavit on October 29. Sulfur dioxide levels did not exceed the maximum permissible concentration.