BANGKOK, June 10 – Hazardous substances did not breach safety standard levels in the vicinity of the IRPC petrochemical plant in Thailand’s eastern province of Rayong, the site of an explosion Sunday night, said Wichien Jungrungruang, director-general of the Pollution Control Department.

Department staff have already checked levels of several air pollutants, especially volatile organic compounds such as benzene, styrene and sulfur dioxide, at the factory and surrounding communities and did not find any substance breaching their safety standard levels.

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