Decade experience of the ecological risk assessment for water ecosystem and human population in Russia

Generalization of environmental risk applications as an integral safety criterion for water ecosystems and human population shows good promise of this approach to local and regional level environmental quality assessment. The major advantage of the environmental risk assessment approach is the timely detection of negative environmental quality trends prior to the toxic substance concentration reaching the maximum permissible concentration in water and air. The existing models of spatial and temporal water poisonous material concentration variation do not provide for authentic results due to their erroneous axiomatic assumptions. A new concept has been suggested for environmental risk assessment for marine ecosystems and human population due to dumped chemical weapons. Implementation of this new concept requires: Actual data on the effect of short-term biogeochemical processes on the behavior of poisonous materials and their decay products both in the water and at its boundaries with seabed deposits and the air; Software package for assessing the effect of nonlinear processes on poisonous material decay and transport rates in seabed water systems.