Environmental loads of air pollution (NOx, SOx, Dust), water pollution (BOD, COD, SS) and industrial wastes are derived from 1990 input-output table in Japan. Quantities of environmental loads of each industrial sector are collected with various materials, and the final domestic productions of each industrial sector are calculated with Lcontief inversion, so that it is possible to calculate the environmental loads due to construction of buildings. Correlations of intensities among Nox, Sox and dust emissions are high, and same as among BOD, COD and SS. But intensities or air pollutions, water pollutions and industrial wastes are independent.
