Conclusion
The results of this health investigation suggest that an acute exposure to chlorine following a train accident may have resulted in chronic health effects in exposed persons.
This study found increased reporting of nearly each symptom asked about on the questionnaire among the exposed participants
Also noted in the physician examination was evidence of increased eye and skin problems among the exposed participants
Most importantly, this study found some evidence of poorer performance among the exposed participants in the pulmonary function and methacholine challenge tests, especially among certain subgroups of participants, such as non-smokers