In this research, the carbon dioxide emission intensity of concreterelated industry is investigated based on field survey and discussions are made on influences of plant scale and regional characteristics. As a result, it is shown that the carbon dioxide emission intensity decreases with increase in the volume of annual production, because of the influence of productivity efficiency, and it varies widely at lower volume of annual production. And also the carbon dioxide emission intensity varies by the region depending on the distribution characteristic of plant scale, so that the carbon dioxide emission intensity in Hokkaido, where its productions are relatively-small, is higher than that in Tokyo metropolitan area.
- Carbon dioxide emission intensity
- Environmental load
- Regional characteristics