[Regulations for decontamination of surfaces polluted as a result of chemical accidents (concept approaches)].

The threat of industrial chemical accidents and terrorist attacks requires the development of safety regulations for the cleanup of contaminated surfaces. This paper presents principles and a methodology for the development of a new toxicological parameter, "relative value unit" (RVU) as the primary decontamination standard.

[Regularities in the variability of species structure of costal littoral kelp: the model analysis]. / Zakonomernosti v izmenchivosti vidovoi struktury pribrezhnogo soobshchestva vodoroslei-makrofitov: model'nyi analiz.

The model describes species structure of competitive community, inhabiting stochastically variable environment. Species list of this community, rearranged accordingly decreasing species abundance, can be described by decreasing geometrical series. According to the model, the value of coefficient of this progression q should be q = exp(-1) = 0.368. The actual data do not contradict statistically to this model constant. Seasonal variability of species structure in biotopes is observed. These biotopes differ one from another by the stability and heterogeneity levels of environmental conditions, estimated with the help of expert evaluation. Total community biomass shows two seasonal peaks; at winter and at spring - summer. Maximal values of total biomass are observed in the biotope with intermediate level of environment stability. The number of species is increased simultaneously with the growth of environmental stability. The level of species abundance equitability grows up too in these conditions. The model of geometric series describes the species structure of the macroalgae community quite adequately. At the same time, the positive correlation between sample's species richness and equitability of species structure results in the outcome that after all samples averaging the biomass distribution of species is approximately more accurately not by geometrical series but by power model. The new statistical method is offered in the application to this work. It allows the expose of statistically significant not monotone essential non-linear relations of nonquantitative (order-type) arguments.

[Scientific principles of sanitary and hygienic basis of chemical weapons demolishment]. / Nauchnye osnovy sanitarno-gigienicheskogo obespecheniia protsessa unichtozheniia khimicheskogo oruzhiia.

The authors designed a set of instructions and methodic documents and universal methodology for sanitary and hygienic follow-up in establishments running chemical weapons demolishment. Those instructions and methodology are aimed to safety of workers and general population.