OMSK, March 10. /Offset. TASS Alexey Petrov/. A special Commission created by order of the Governor of Omsk region Viktor Nazarov, sets the source of the harsh chemical odor that has spread the night throughout million of Omsk. As reported the press service of the regional government, currently in the Northern areas of the city are raids and conducted unscheduled air intakes to test.

“On behalf of the Governor Viktor Nazarov, a special Commission establishes the origin of the bad smell in Omsk. It included experts of the regional Ministry of natural resources and Rospotrebnadzor”, – said the press service.

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As told TASS the head of Rospotrebnadzor of the Omsk region, chief sanitary doctor of the region Alexander Krieg, pre-installed significant excess of maximum permissible concentration of odorant “ethyl mercaptan” . It is assumed that the contamination extends from the North-West of the industrial site of Omsk, where the largest enterprises neftepererabotki and petrochemical industries. “Now we are waiting for an official report of tests of atmospheric air taken tonight by the automatic observation posts, located on the borders of sanitary protection zones in this area,” said Krieg.

In the Management of corporate communications of the Omsk oil refinery (owned by PJSC “Gazprom Neft”) TASS reported that the integrated system of environmental control of the refinery did not record exceeding of the normative values of monitored parameters of the atmosphere. The enterprise works in a regular mode.

The accumulation and diffusion of asphyxiating smell contributed to the calm, steady yesterday in Omsk, told the Ob-Irtysh management of Hydrometeorology and environmental monitoring. In connection with adverse weather conditions (NMU), leading to accumulation of polluting substances in surface layer of atmospheric air, the city declared a storm warning, which will be valid until 18:00 (15:00 GMT) on March 10.

Ethyl mercaptan is due to the strong smell is used as odorant for domestic natural gas and LPG. The gas is toxic is poisonous substances and belongs to the third class of danger. In large quantities it causes headaches, nausea and loss of coordination.