RISC5

RISC5

Human Health and Ecological Risk Assessment

  • Human health and ecological risk assessment
  • Seeking for cost and energy saving site specific remediatial solutions
  • Comprehensive modeling and risk characterization package

 

Overview

RISC5 is a software package for performing fate and transport modeling, human health risk assessments and ecological risk assessments for contaminated sites. A unique feature of RISC5 is its ability to perform a backward risk calculation as well as the conventional forward risk calculation. The backward risk calculation in RISC5 refers to calculating a cleanup level for an input value of risk. Fate and transport models are available in RISC5 to estimate receptor point concentrations in groundwater and indoor and outdoor air. No other RISK package offers all this! RISC5 can be used to estimate the potential for adverse human health impacts (both carcinogenic and non-carcinogenic) from up to nine exposure pathways.

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Applications

  • A szennyezett környezeti elemek (levegĹ‘, vĂ­z, talaj) miatti expozĂ­ciĂłbĂłl adĂłdĂł humánegĂ©szsĂ©gĂĽgyi kockázatok becslĂ©se.
  • TáplálĂ©klánc szűrĹ‘modellek földi Ă©s vĂ­zi ökolĂłgiai kockázatelemzĂ©sekhez
  • Kockázaton alapulĂł kármentesĂ­tĂ©si határĂ©rtĂ©kek becslĂ©se.
  • Egyszerű sors- Ă©s transzportmodellek kĂ©szĂ­tĂ©se.
  • FelszĂ­ni vizekre Ă©s ĂĽledĂ©kekre vonatkozĂł lehetsĂ©ges ökolĂłgiai hatások becslĂ©se.
  • Környezeti adatok Ă©s határĂ©rtĂ©kek menedzselĂ©se Ă©s tárolása. 
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Features

RISC5 Interface

RISC follows a logical menu structure that takes you through the necessary steps to producing your risk analysis or contaminant transport model run. Simply complete the 6 steps outlined in RISC to obtain results quickly. If you're not sure of an input parameter, simply launch the chemicals or environmental parameters database for a selection of common 'risk' parameters!

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Choose Chemicals of Concern

RISC allows you to select from over 86 common chemicals providing physical, chemical, and toxicity values or add new compounds

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Define the Contaminant Source and the Conceptual Model

The user may select the type of assessment (juman health or ecological), define the location of the source, and the exposure routes. It is also possible to define directly the exposure point concentrations without the need to perform a transport simulation.

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Determine Receptor Point Concentrations

The third step is to determine receptor point concentrations for the various media of concern specified in Step 2. There are two methods for determining receptor point concentrations; the user can enter receptor point concentrations directly into RISC, or the user can enter source zone concentrations and then utilize chemical fate and transport models to estimate the receptor point concentrations. The method(s) to be used in Step 3 are determined by the choices made in Step 2

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Describe the Receptors / Ecological Risc Analysis

In Step 4, the receptor(s) of concern are chosen and the receptor - specific intake parameters are entered. RISC contains both deterministic and stochastic (Monte Carlo input) default data on exposure for many different types of receptors. The user is free to use the default data provided or to change the intake parameters to reflect actual site-specific values.

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If we are performing an ecotoxicological assessment, first we have to perform an ecological screening assessment. Based on the screening assessment one may decide whether an ecological risk assessment will have to be performed or not. If yes, then during the subsequent steps we can select the acceptable concentrations for the surface water and for the sediments. We may select from various country specific standards, and compile the specific table for the needs of the current analysis. If all this was performed, during the last step we may define the food web: select the receptor end point from a database, define receptor-specific parameters, define food sources, and specify the site-specific input parameters. Finally, we can input or modify the ecotoxicological values of the chemicals of concern.

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Risk / Food Web Calculations

The potential carcinogenic risk and non-carcinogenic hazard are calculated by the software using equations presented in EPA's Risk Assessment guidelines. Here we have the possibility to calculate site-specific remediation target values based user defined target risks and hazard indexes, respectively.

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View the Results

The results of the risk assessment are prepared in the form of an Excel spreadsheet, so no further post-processing is required and can be copied and pasted in final reports. If we calculated remediation limits, then the table summarizes the concentrations for each media of concern.

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System Requirements

  • Windows XP/Vista/Win 7
  • Office 2003 or higher (Excel 2003 or greater)
  • A Pentium class chip
  • 1024 x 768 monitor minimum