What are the recommended levels of CO2 in indoor environments for health and comfort?

Feb 11, 2009 ... ... percent of those generated by today's ... Another indication that human emissions dwarf those of volcanoes is the fact that atmospheric CO2 ... Jan 2, 2023 ... Some researchers believe that approximately 0.045% by volume is the maximum more or less acceptable concentration of CO2 in the atmosphere. Dec 7, 2023 ... Today atmospheric carbon dioxide is at its highest level in at least several million years thanks to widespread combustion of fossil fuels ... Feb 3, 2025 ... CO2 atmospheric dry molar fraction (ppmv), averaged over a calendar year Ice cores Mauna Loa 1800 1820 1840 1860 1880 1900 1920 1940 1960 ... Aug 31, 2022 ... We hear about the overload of carbon dioxide in the atmosphere, but what percentage of this comes from human exhalation? Nick Canning. Nov 9, 2021 ... Molecule for molecule, methane is far more effective than CO2 at trapping heat in the atmosphere. Estimates of how much methane emissions ... CO2 accounts for about 76 percent of total greenhouse gas emissions. Methane ... The top 7 emitters are responsible for nearly two-thirds of global greenhouse gas ... Aug 13, 2024 ... CO2 measurement in air: everything you need to know. Range, accuracy and precision. Percentage versus parts per million. Oct 28, 2024 ... Carbon dioxide (CO2) is accumulating in the atmosphere faster ... Long lifetime of CO2 in atmosphere locks in future temperature increase ... Jul 25, 2023 ... ... atmosphere” It is great to have it quantified, but where is the ... PERCENTAGE OF CONTRIBUTIONS RECEIVED BY THE CHARITY DURING THE LAST ...