The rapid growth of the world population - nearly six-fold over the last
hundred years - combined with the rising number of technical
installations especially in the industrialized countries has lead to
ever tighter and more strained living spaces on our planet. Because
ofthe inevitable processes oflife, man was at first an exploiter rather
than a careful preserver of the environment. Environmental awareness
with the intention to conserve the environment has grown only in the
last few decades. Environmental standards have been defined and limit
values have been set largely guided, however, by scientific and medical
data on single exposures, while public opinion, on the other hand, now
increasingly calls for astronger consideration of the more complex
situations following combined exposures. Furthermore, it turned out that
environmental standards, while necessarily based on scientific data,
must also take into account ethical, legal, economic, and sociological
aspects. A task of such complexity can only be dealt with appropriately
in the framework of an inter- disciplinary group.