Toxicologically determined indoor air guidelines values

At the Austrian Ministry for Environment (now: Federal Ministry for agricul ture and forestry, environment and water management) a working group was es tablished to propose indoor air guideline values. This consists of represen tatives of different disciplines, such as physicians, toxicologists, engine ers and lawyers. Already in the constituent meeting it was decided to emplo y a set pattern for establishing toxicologically sound guideline values. It was then agreed to use the pattern proposed by the German ad-hoc-working t eam. The interdisciplinary discussions, however-, demonstrated the need for additional clarification, since representatives of different disciplines o bviously interpret the various terms and principles differently. In particular, there is a need for discussing in detail the relation betwee n the guideline values for indoor air to other air quality standards (outdo or air and workplace) and to specify their scope and application, especiall y the need to describe in greater detail what should be done in case either guideline value I or II was exceeded.