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Total observed organic carbon indoors

Derek found that the total organic carbon concentration was impressively large, three times higher than what you’d find in a typical American city and ten times higher than clean ocean air. He also found that the compounds in the museum were significantly fresher – less oxidized – than those in outdoor air.

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Humans Identified as the Largest Source of Volatile Organic Chemicals in Indoor Air

US researchers found that people and their possessions directly emitted 57% of the volatile organic compounds (VOCs) they measured in the air of a university lecture theatre. We spend approximately 90% of our life inside, where concentrations of VOCs are consistently found to be much higher than in outdoor air. This research is one of the first few to detail the important role that emissions from direct human occupancy plays here.

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