商用喷气式飞机中环境臭氧浓度和机舱臭氧浓度的交替测量。

Alternating measurement of ambient and cabin ozone concentrations in commercial jet aircraft.

作者信息

van Heusden S, Mans L G

出版信息

Aviat Space Environ Med. 1978 Sep;49(9):1056-61.

Abstract

Ambient and cabin-air ozone concentrations were determined with an adapted commercial ozone analyzer installed in a KLM DC-10 from Amsterdam to Toronto and back. Cabin levels were detected directly and almost continuously; ambient levels were measured using a sampling system in which the ambient samples were converted to the cabin pressure at intervals of 13 min. A correlation is demonstrated between the ambient level, the cabin level, and the tropopause height. It was found that 70% of the ambient ozone concentration enters the cabin through the ventilation system, and about 50% of this concentration was measured 1.20 m above the cabin floor. For about 50% of the total flying time, the ozone level exceeded 200 parts per billion, by volume (ppb) in the cabin, with peak concentrations of about 600 ppb (TLV levels of 80--100 ppb apply in most IATA countries). Finally, medical and technical recommendations are made for future measurements.

摘要

通过安装在一架从阿姆斯特丹飞往多伦多并返回的荷兰皇家航空DC - 10飞机上的适配商用臭氧分析仪，测定了环境和机舱空气中的臭氧浓度。机舱内的臭氧水平可直接且几乎连续地检测到；环境臭氧水平则使用一个采样系统进行测量，在该系统中，环境样本每隔13分钟转换为机舱压力。结果表明，环境臭氧水平、机舱臭氧水平与对流层顶高度之间存在相关性。研究发现，70%的环境臭氧浓度通过通风系统进入机舱，且在机舱地板上方1.20米处测得该浓度的约50%。在大约50%的总飞行时间内，机舱内的臭氧水平超过了200体积十亿分之一（ppb），峰值浓度约为600 ppb（大多数国际航空运输协会国家适用的阈限值为80 - 100 ppb）。最后，针对未来的测量提出了医学和技术方面的建议。