Model for assessing control and management of water quality in transboundary water bodies

Transboundary transport of pollution by riverbed water flows creates environmental and economic losses in areas located downstream of rivers. At the same time, very serious problems arise not only on watercourses crossing state borders, but also on the borders between individual entities of the same country. First of all, the problem of reliability of water quality assessment arises, in conditions of significant instability of the hydrological regime, based on existing monitoring systems. This problem is considered using the example of a transboundary river. Ural. An algorithm for forming a constructive dialogue between interested parties is proposed by taking into account the statistical characteristics of the measurement results obtained at neighboring hydrochemical observation sites. The expediency of taking into account for this purpose the threshold of distinguishability of controlled indicators, assessment and regulation of errors of the 1st and 2nd types is shown. The possibility of establishing economic losses due to the lack of constructive relations between the parties in terms of assessing controlled indicators has been demonstrated.