The paper considers a differential game pollution control in which the duration of the game is a random variable and is determined by the moment of the first failure of the production equipment from any of the players. Game parameters are calculated based on the real ecological situation of the Irkutsk region. The three largest enterprises of Bratsk, where one of the most acute environmental situations in Russia is observed, are chosen as players. A solution was proposed that would improve the overall ecological situation in the region