The primary route of exposure is through inhalation.The acute effects of benzene intoxication in the CNS including euphoria, headache, staggering gait, stupor and coma.

• 苯主要经由呼吸道吸入而造成毒性，急性中毒主要侵犯中枢神经系统，长期暴露会造成血液系统异常。