Causes of gas odors

Officials of the Ministry of Public Safety and Security’s disaster management office deliver a briefing at the Sejong Government Complex, Thursday, on the cause of mysterious smells in Busan and Ulsan last month. They said the odor in Busan was from an odorant leaking from a tanker, and that in Ulsan was from a chemical factory complex, adding that the levels were not harmful. / Yonhap