U.S. Wakaalada Ilaalinta Deegaanka (EPA) waxay hadda wadaa baaritaan ku saabsan xiriirka ka dhexeeya butadiene iyo kansarka.
Intaa waxaa dheer, EPA waxay dejisay qorshe qabyo ah oo lagu nidaaminayo kala firdhinta benzene, loo aqoonsaday inuu yahay kansar. The agency asserts that substantial data exist demonstrating that butadiene, along with its synthetic rubber manufacturing process, significantly endangers human health.