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Humans are the main indoor source of carbon dioxide (CO 2) in most buildings. Indoor CO 2 levels are an indicator of the adequacy of outdoor air ventilation relative to indoor occupant density and metabolic activity. Indoor CO 2 levels above 500 ppm can lead to higher blood pressure and heart rate, and increased peripheral blood circulation. [85]
Keeping the air inside your home healthy depends on knowing the reasons it turns bad in the first place.
New studies show that CO2 inside buildings could be just as harmful as outside. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...
Under most conditions, the partial pressure of carbon dioxide (PCO 2), or concentration of carbon dioxide, controls the respiratory rate. The peripheral chemoreceptors that detect changes in the levels of oxygen and carbon dioxide are located in the arterial aortic bodies and the carotid bodies . [ 2 ]
Normocapnia or normocarbia is a state of normal arterial carbon dioxide ... high tissue carbon dioxide levels; Hypocapnia – State of reduced carbon dioxide in the ...
Carbon dioxide liquid/vapor equilibrium thermodynamic data: Temp. °C P vap Vapor pressure kPa H liq Heat content liquid J/g H vap Heat content vapor J/g
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). [69] CO 2 from the atmosphere is absorbed by the oceans.
During mold remediation in the U.S., the level of contamination dictates the protection level for remediation workers. [26] Contamination levels have been enumerated as I, II, III, and IV: [citation needed] Level I: Small, isolated areas (10 square feet (0.93 m 2) or less); remediation may be conducted by trained building staff;