article_snippet: Andrei Serebrennikov, who was exposed to dangerous levels of methane, is being treated at the Regional Hospital of Occupational Diseases in Donetsk after the incident on Wednesday.
article_snippet: Oxygen treatment: Andrei Serebrennikov was exposed to dangerous levels of methane in explosion on Wednesday .
article_snippet: : Andrei Serebrennikov is being treated at the Regional Hospital of Occupational Diseases in Donetsk Donetsk after Blast .
article_snippet: Andrei Serebrennikov is undergoing an enriched oxygen treatment in a pressure chamber in Ukraine .
highlights_snippet: Andrei Serebrennikov was exposed to dangerous levels of methane .
  