Search of source of toxic benzene in the atmosphere of the International space station will resume in late July, after delivery the new American analyzer air on the Russian cargo ship "Progress", told RIA Novosti source in the space industry.

On Tuesday, NASA announced that the search for the source of benzene had to stop due to the failure of the American device for determining air quality AQM-1 when carrying out measurements in the Russian segment of the ISS.

"Because such a device at the station alone and it cannot be repaired in orbit, then decided to send to the ISS a new AQM on the ship "Progress MS-15", – said the Agency interlocutor.

Earlier it was reported that the launch of the cargo ship "Progress MS-15" to the ISS, the carrier rocket "Soyuz-2.1 a" from Baikonur cosmodrome is planned on July 23.

In may, "Roskosmos" said RIA Novosti about the increase in the concentration of benzene in the atmosphere of the ISS, not exceeding the maximum allowable normal and non-threatening to the crew. The source of benzene is still not found.

Benzene is a colorless liquid with a specific sweet smell. Included in gasoline and used for production of drugs, plastics, synthetic rubber and dyes. Toxic and carcinogenic.

Now work on the ISS Russian cosmonauts Anatoly Ivanishin and John Wagner, as well as American astronaut Christopher Cassidy, Douglas Hurley and Robert Behnken.