Word: carboxyhemoglobin
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...hard-breathing Harvard hockey team these levels are dangerous. For instance, a Harvard iceman whose ventilation rate reaches 25 litres per minute after 80 minutes, at exposures of 60 ppm will incur a 10 per cent carboxyhemoglobin level--10 per cent of his oxygen carrying hemoglobin is bound by carbon monoxide. This means that the Harvard player is receiving oxygen as if he were at 12,000 feet above sea level...
...April 1 through April 9 showed CO levels of 25 ppm not uncommon during rush hour. For the one hour jogger, carbon monoxide levels found on the circuit exceed those of heavy cigarette smokers in some cases. For example, a person smoking three cigarettes in a row may produce carboxyhemoglobin levels of 7 per cent, corresponding to an altitude of 7000 feet above sea level. The physiological consequences are the same as those for the hockey player...
...Harvard's hockey team should submit to complete EKG exams, and pre-season and post-season hemoglobin and carboxyhemoglobin level counts...
...Haldane fittingly began life as a prodigy. The son of an Oxford physiologist, he could read and talk almost before he could walk. It is said that once, when the talented toddler fell and cut his forehead, he inspected the blood with detachment and asked: "Is it oxyhemoglobin or carboxyhemoglobin?" At Eton, Haldane was regularly beaten by senior boys. But by the time he left school, he could read Latin and Greek, French and German, and, as he observed with matter-of-fact pride, "I knew enough chemistry to take part in research, enough biology to do unaided research...
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