The relationship between CO₂ concentration in living environments and regional environmental characteristics:

An evaluation based on measured CO₂ data as an environmental assessment indicator

Abstract

In this study, we defined the CO₂ concentration observed when the wind speed was 3 m/s or higher as the “CO₂ reference concentration.” We then used actual measurement data from CO₂ concentration monitoring stations established in the three prefectures of the Tokai region to create an environmental assessment indicator and verified the relationship between CO₂ concentration and the regional environment based on these indicators. The results revealed that 1) in summer, the degree of natural land use effects on CO₂ concentrations and their temporal changes can be quantitatively evaluated, and 2) in winter, comprehensive verification is necessary, including not only urban land use effects but also meteorological conditions and the long-range transport of CO₂.