Citation

Yu B, Zhang H, Mou X, Yu F, Zhong H, He Z. Space Med. Med. Eng. 1997; 10(5): 328-332.

Affiliation

Institute of Space Medico-Engineering, Beijing, China.

Copyright

(Copyright © 1997, Hang tian yi xue yu yi xue gong cheng bian ji bu)

DOI

unavailable

PMID

11540383

Abstract

Human volunteers were exposed to various low concentrations of carbon monoxide (CO) in a closed cabin. The results showed that 35 mg/m3 of CO caused slight subjective symptoms and reduction in contrast vision, operating efficiency and T-wave of ECG. At 80 mg/m3 and 115 mg/m3 the above changes were more severe and a rise in hearing threshold level was observed. It demonstrated that an inhibitory effect on the CNS and heart were caused by low concentrations of CO. According to the absorption curves for human exposed to CO, it is suggested that the sense effect level and vision effect level for CO are 7% COHb, and the hearing effect level is 9% COHb.

Language: zh