Indoor air pollution in Japanese buildings.

Under the provisions of the Law for Maintenance of Sanitation in Buildings, the "Building Sanitation Control Standards" came into force subsequently. The air quality standard, one of these Standards, is composed of the following 6 items: Suspended particles, carbon dioxide, carbon monoxide, temperature, relative humidity, and air velocity. Since the enactment of the law, we have surveyed actual conditions of indoor environment for these 13 years, and found the percentage of buildings which failed to come up to the standards.