根据目前世界上最专业的潜水保险机构DAN所提供的休闲潜水后乘坐飞机的研究报告及建议,原文描述如下:Revised Flying After Diving Guidelines for Recreational Diving - May 2002The following guidelines are the consensus of attendees at the 2002 Flying After Diving Workshop. They apply to air dives followed by flights at cabin altitudes of 2,000 to 8,000 feet (610 to 2,438 meters) for divers who do not have symptoms of decompression sickness (DCS). The recommended preflight surface intervals do not guarantee avoidance of DCS. Longer surface intervals will reduce DCS risk further. For a single no-decompression dive, a minimum preflight surface interval of 12 hours is suggested. For multiple dives per day or multiple days of diving, a minimum preflight surface interval of 18 hours is suggested. For dives requiring decompression stops, there is little evidence on which to base a recommendation and a preflight surface interval substantially longer than 18 hours appears prudent.对于单次免减压潜水,建议搭乘飞机前至少有12小时水面休息时间。对于一日或数日多次重复潜水,建议搭乘飞机前至少有18小时水面休息时间。对于需要减压停留的的多次潜水,基于安全谨慎的原则,有少量证据表明建议搭乘飞机前应大大超过18小时水面休息时间。因此为了保守起见,也有建议24小时水面休息时间的说法,例如SSI的规定就是如此。会有这样规定的原因是在于预防减压病的发生,然而不管水面休息时间多长,以上建议都不能完全保证避免患减压病的可能。什么是减压病?当我们在水下呼吸时,氧气会转换二氧化碳排出体外,但受到水压的关系,一部分不会发生反应氮气分子会融入血液并沿分压梯度扩散到身体各部位组织里。我们把它们叫做余氮,通常以隐性气泡的形式存在,并不会对我们的身体造成影响,而余氮量主要与潜水深度和潜水时间有关。我们在上升时所要求的缓慢速度以及安全停留,包括潜水计划表的各种计算和水面休息时间,都是为了用安全谨慎的方式去释放体内的余氮。就像一罐碳酸饮料的里的二氧化碳,正常暴露在空气中一段时间就会慢慢变得没气了,但剧烈摇晃或者加热等方式会产生大量气泡。如果原本我们体内的隐性气泡也以激烈的方式而膨胀形成肉眼可见的气泡就会造成减压病的症状,轻则皮肤瘙痒,皮下气肿,关节刺痛等,重则血液里的气泡会阻塞血管形成拴塞,造成神经麻痹,瘫痪甚至死亡。通常在海平面上为1个大气压,搭乘飞机时因为高度增加,环境压力突然减小,会使得体内还没完全释放掉的余氮形成气泡,数量太多就有可能会引发减压病。因为浮潜基本上是在海面活动,不存在体内残留氮气的问题,所以不存在禁飞时间一说。
费容
根据目前世界上最专业的潜水保险机构DAN所提供的休闲潜水后乘坐飞机的研究报告及建议,原文描述如下:
Revised Flying After Diving Guidelines for Recreational Diving - May 2002
The following guidelines are the consensus of attendees at the 2002 Flying After Diving Workshop. They apply to air dives followed by flights at cabin altitudes of 2,000 to 8,000 feet (610 to 2,438 meters) for divers who do not have symptoms of decompression sickness (DCS). The recommended preflight surface intervals do not guarantee avoidance of DCS. Longer surface intervals will reduce DCS risk further.