CAirTOX, An inter-media transfer model for assessing indirect exposures to hazardous air contaminants

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Risk assessment is a quantitative evaluation of information on potential health hazards of environmental contaminants and the extent of human exposure to these contaminants. As applied to toxic chemical emissions to air, risk assessment involves four interrelated steps. These are (1) determination of source concentrations or emission characteristics, (2) exposure assessment, (3) toxicity assessment, and (4) risk characterization. These steps can be carried out with assistance from analytical models in order to estimate the potential risk associated with existing and future releases. CAirTOX has been developed as a spreadsheet model to assist in making these types of calculations. CAirTOX follows … continued below

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16 p.

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McKone, T. E. January 1, 1994.

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Risk assessment is a quantitative evaluation of information on potential health hazards of environmental contaminants and the extent of human exposure to these contaminants. As applied to toxic chemical emissions to air, risk assessment involves four interrelated steps. These are (1) determination of source concentrations or emission characteristics, (2) exposure assessment, (3) toxicity assessment, and (4) risk characterization. These steps can be carried out with assistance from analytical models in order to estimate the potential risk associated with existing and future releases. CAirTOX has been developed as a spreadsheet model to assist in making these types of calculations. CAirTOX follows an approach that has been incorporated into the CalTOX model, which was developed for the California Department of Toxic Substances Control, With CAirTOX, we can address how contaminants released to an air basin can lead to contamination of soil, food, surface water, and sediments. The modeling effort includes a multimedia transport and transformation model, exposure scenario models, and efforts to quantify uncertainty in multimedia, multiple-pathway exposure assessments. The capacity to explicitly address uncertainty has been incorporated into the model in two ways. First, the spreadsheet form of the model makes it compatible with Monte-Carlo add-on programs that are available for uncertainty analysis. Second, all model inputs are specified in terms of an arithmetic mean and coefficient of variation so that uncertainty analyses can be carried out.

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16 p.

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INIS; OSTI as DE94009380; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

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  • Annual meeting and exhibition of the Air and Waste Management Association,Cincinnati, OH (United States),19-24 Jun 1994

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  • Other: DE94009380
  • Report No.: UCRL-JC--116485
  • Report No.: CONF-940632--7
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 10139556
  • Archival Resource Key: ark:/67531/metadc1318567

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  • January 1, 1994

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  • Nov. 3, 2018, 11:47 a.m.

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  • Nov. 12, 2018, 1:25 p.m.

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McKone, T. E. CAirTOX, An inter-media transfer model for assessing indirect exposures to hazardous air contaminants, article, January 1, 1994; California. (https://digital.library.unt.edu/ark:/67531/metadc1318567/: accessed May 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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