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Hypercapnia (from the Greek hyper, "above" or "too much" and kapnos, "smoke"), also known as hypercarbia and CO 2 retention, is a condition of abnormally elevated carbon dioxide (CO 2) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.
Carbon dioxide is the lasing medium in a carbon-dioxide laser, which is one of the earliest type of lasers. Carbon dioxide can be used as a means of controlling the pH of swimming pools, [141] by continuously adding gas to the water, thus keeping the pH from rising. Among the advantages of this is the avoidance of handling (more hazardous) acids.
Acute respiratory acidosis occurs when an abrupt failure of ventilation occurs. This failure in ventilation may be caused by depression of the central respiratory center by cerebral disease or drugs, inability to ventilate adequately due to neuromuscular disease (e.g., myasthenia gravis, amyotrophic lateral sclerosis, Guillain–Barré syndrome, muscular dystrophy), or airway obstruction ...
This is a list of sovereign states and territories by per capita carbon dioxide emissions [n 1] due to certain forms of human activity, based on the EDGAR database created by European Commission. The following table lists the annual per capita CO 2 emissions estimates (in kilotons of CO 2 per year) for the year 2023, as well as the change from ...
Carbon dioxide emissions from human activities are the primary cause of ocean acidification, with atmospheric carbon dioxide (CO 2) levels exceeding 422 ppm (as of 2024). [67] CO 2 from the atmosphere is absorbed by the oceans.
Air travel amid COVID outbreaks can be unnerving but a carbon dioxide detector can help gauge risks. Here's what a CO2 detector showed on a flight.
Carbon dioxide is the main greenhouse gas resulting from human activities. It accounts for more than half of the warming. Methane (CH 4) emissions have almost the same short-term impact. [5] Nitrous oxide (N 2 O) and fluorinated gases (F-gases) play a lesser role in comparison. Emissions of carbon dioxide, methane and nitrous oxide in 2023 were ...
Living plants oxygenate the air, reduce CO2 levels and naturally purify the air, so they’re a great way to affect air quality for relatively low cost. Aloe vera, fern and peace lily are all good ...