OBJECTIVE To evaluate occupational exposure risks in workers at pharmacy intravenous admixture services(PIVAS).METHODS Ten PIVAS from Chinese hospitals were selected,and work environment and biological effects were monitored with cyclophosphamide(CP)and cytarabine(CAR)as markers.RESULTS For environmental monitoring,different levels of contamination existed in ten PIVAS besides of antineoplastic drug(AD)admixture area.With increase of PIVAS running years,AD pollution tended to spread to general controlled ar...