Abstract
It is well known that one third of the Japanese is suffered from a certain allergy. There are various things related to the allergen which is the causative agent of allergy, and mold is one kind of important allergen in indoor environment. Although it is necessary to reduce contamination by mold, since the“dose-response relationship”of almost all molds is unknown, it is actually difficult to enact the environmental standards about indoor mold based on healthy influence or risk assessment method.
In the first half of this paper the healthy influence and risk of human by mold and the establishment method of environmental standards based on dose-response relationship were introduced. In the second half, present conditions of the environmental standards on mold were described.