The concentration of sulfur dioxide exceeded the maximum permissible concentration 4.6 times and nitrogen dioxide 2.6 times after the explosion in Surmalu shopping center.

The maximum permissible concentration of dust, nitrogen dioxide 1.6-1.8 times, sulfur dioxide 1.1-1.3 times was exceeded in air in the Central Administrative District of Yerevan, the press service of Hydrometeorology and Monitoring Center told NEWS.am.

Dust content in the air in Nor Nork administrative district exceeded the maximum permissible concentration 1.4 times.