Therefore we exhale the remaining seventy-five percent. We already have a large surplus of oxygenĪt a breathing volume of six liters per minute, we only use about twenty-five percent of the oxygen we inhale. This over-breathing implies a low-grade form of hyperventilation, which leads to an imbalance between oxygen and carbon dioxide – we get too much oxygen in the body while at the same time removing too much carbon dioxide through exhalation. But many of us breathe a lot more, often 18-25 breaths per minute and up to one liter of air per breath, giving a breathing volume of up to 10-15 liters per minute. Normal breathing at rest is about 6-12 breaths per minute and about half a liter of air per breath, giving a total breathing volume of about 3-6 liters of air per minute. What is normal breathing volume and what is hyperventilation? However, nothing could be further from the truth. Generally, oxygen is considered to be the amazing life-giving substance, while carbon dioxide is just a toxic waste product that we want to get out of the body as soon as possible. This article, however, is about the levels of carbon dioxide in the body, but here too, carbon dioxide has a bad reputation. ![]() ![]() The increasing amount of carbon dioxide in the atmosphere means that more infrared heat from the sun is reflected back to earth and stays here, instead of returning into space. It is estimated that before 1750, when industrialization began, the levels of carbon dioxide were approx. In other words, a 33% increase in a relatively short period of time. 315 ppm (parts per million), 0,031%, to approx. Since the measurements started in 1958 at Mauna Loa Observatory in Hawaii, the levels of carbon dioxide have increased from approx. ![]() And the levels of carbon dioxide, also called greenhouse gas, in the atmosphere have indeed increased. Carbon dioxide emissions are painted as the major culprit behind global warming. Perhaps you’ve heard of carbon dioxide before, but probably not in any positive terms.
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