Exposed acutely to V2O5. Coughing, wheezing, chest pain, bronchitis, and asthma-like symptoms as well as impaired lung function occurred in humans exposed to high levels of V2O5-containing dust [22-25]. In primates, inhalation of V2O5 particles increased bronchoaveolar polymorphonuclear neutrophils (PMNs) and impaired pulmonary function [26], and in rodents, inhalation or intratracheal administrat