Risk categorization matrix
The Risk categorization matrix (RCM) is a tool in risk assessment to determine if the munitions can be safely moved without detonation or leakage incident. The RSC lists possible risks associated with particulate munitions. These include physical risks, such as corrosion status and presence/condition of explosives, chemical risks such as toxicity of constituents and pollution of nearby sediments and water, toxicity for biota and impact on environment. This measured values are complemented by modelled properties: VRAKA-CWA model, rate of leakage, rate of degradation and potential range of transport of contaminants to other areas, as well as time that suspended particulates may spend in the water column. Another property is a risk for humans - based on distance to existing or planned offshore infrastructure and intensity of fishery in the area. Each measured and modelled property are assigned a numerical risk factor, which enable quantification of risk level not only for particular property but also for their combined effects. Information provided by RCM is built into DSS which is able to include different kind of relevant data in its generic data-source component and produce risk categorizations of geographical areas. The risk categorization matrix is built in form of spreadsheet, with properties assigned to columns, and degree of risk placed in rows. Risk levels are represented as constants based on studies performed within a project and available data from other studies, while combined risk will be calculated by dedicated empirical formulas. Formulas would assign weights to different measured and modelled properties, and produce risk factor that could be assigned to particular munitions, complimented by significance calculated as availability of data.