Shenhai Explosion-Proof
Te U.S. Te Tari Tiaki Taiao (EPA) kei te whakahaere rangahau i te hononga o te butadiene me te mate pukupuku.
I tua atu, kua whakatakotohia e te EPA he mahere tauira hei whakahaere i te mararatanga o te benzene, kua tohuhia he mate pukupuku. E kii ana te tari he nui nga raraunga e whakaatu ana i tera pūtadiene, me tana mahi hanga rapa waihanga, ka tino whakararu i te hauora o te tangata.