 Ke adianade do, aiviri nwere ike banye 90 nke benzene; agave nwere ike ilo 70 nke benzene, 50 formaldehyde na 24 of trichlorethylene; nghọta-acha anụnụ anụnụ nwere ike ilo 96 carbon monoxide, 86 formaldehyde. 