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  • What does ppm mean for carbon monoxide 2024?

    氧化碳 浓度 分子

    Questioner:Oliver Davis 2023-06-07 11:51:46
The most authoritative answer in 2024
  • Skylar Gonzales——Studied at the University of Toronto, Lives in Toronto, Canada.

    Parts Per MillionThe level of CO concentration is measured using a system called Parts Per Million (PPM). For example, 100 PPM CO means that for every 999,900 molecules of air, there are 100 molecules of CO. CO effects people differently depending on the concentration.read more >>
    +119962023-06-08 11:51:46

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