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2. Risk of indoor airborne infection transmission estimated from carbon dioxide concentration;Rudnick;Indoor Air,2003
3. Monitoring Carbon Dioxide to Quantify the Risk of Indoor Airborne Transmission of COVID-19;Bazant,2021
4. Non-uniformity in outdoor CO2 concentration in city of Copenhagen;Takahashi,2019
5. Effects of meteorological factor on CO2 concentrations;Marrero,2018