Although safer alternatives exist, about half of the Benzene manufactured  in the world is being used in Asia as a washing agent. With no safeguards or ventilation in place , factory workers are succumbing to leukemia at an alarming rate, the number of suicides is shocking as well.  Benzene is  a proven cancer causing agent. Traces of Benzene remain in consumer products worldwide.
https://www.youtube.com/watch?v=jUPaAZu_l90
https://www.youtube.com/watch?v=ns-kJ5Podjw