“…The symptoms often develop within minutes to a few hours after exposure and include coughing, shortness of breath and chest pain (Burkhart et al, 1996; Centers for Disease Control and Prevention, 1993). The symptoms spontaneously resolve within a few days, but sometimes supportive treatment with oxygen, bronchodilators or corticosteroids is needed (Burkhart et al, 1996;Laliberte et al, 1995;Lazor-Blanchet et al, 2004). Permanent effects after exposure are rare, but have been reported (Wallace and Brown, 2005).…”