【Daily Question】1.17 Multiple-choice question: According to **health standards, the maximum allowable levels of hydrogen sulfide and sulfur dioxide in industrial and mining areas are...
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This post was last edited by Catalyzing a Grain on 2016-1-22 at 10:51. Multiple-choice question: According to **health standards, the maximum allowable concentrations of hydrogen sulfide and sulfur dioxide in industrial areas are respectively (A) mg/m3. A、10, 20 B、10, 30 C、20, 30. +2 wealth for participation, +5 wealth for correct answers, +8 wealth for in-depth discussions. Activities available: “My Most Crazy” – +20 wealth; “Haichuan Thanksgiving Season” – +30 wealth. [Petroleum chemical activity] Registration for “My Most Crazy” activity: http://bbs.hcbbs.com/thread-1487895-1-1.html (Source: Haichuan Chemical Industry Forum). Year-end event – “Haichuan Thanksgiving Season”: Surprises and big prizes await all participants! http://bbs.hcbbs.com/thread-1532394-1-1.html (Source: Haichuan Chemical Industry Forum)
In accordance with **health standards, the maximum allowable concentrations of hydrogen sulfide and sulfur dioxide in industrial and mining areas are respectively (B) mg/m3: A. 10, 20; B. 10, 30; C. 20, 30
In accordance with **health standards, the maximum allowable concentrations of hydrogen sulfide and sulfur dioxide in industrial and mining areas are respectively (A) mg/m3: A、10, 20 B、10, 30 C、20, 30