Key points
ATSDR’s Shower and Household Water-Use Exposure (SHOWER) model is an exposure assessment tool used to evaluate inhalation and dermal exposure to volatile chemicals when using contaminated water at home. Results from the SHOWER model can be imported into PHAST to generate hazard quotients and cancer risk estimates for inhalation and dermal exposures. You can request a copy of the SHOWER model by emailing showermodel@cdc.gov.
Resources
Use the ATSDR's Shower and Household Water-Use Exposure (SHOWER) model, an exposure assessment tool, to evaluate inhalation and dermal exposure to volatile chemicals when using contaminated water indoors. You can import the results from the SHOWER model into PHAST to generate hazard quotients and cancer risk estimates for inhalation and dermal exposures. You can request a copy of the SHOWER model by emailing showermodel@cdc.gov
- SHOWER Model Guidance – This guidance document describes how to evaluate inhalation and dermal exposure to chemicals that occur when people use water indoors for showering, hand washing, and other activities. When people use water indoors, volatile and semi-volatile chemicals in the water will volatilize to indoor air. Inhalation exposure results from people breathing the chemicals in indoor air, and dermal exposure results from skin contact with the chemicals in water. The guidance covers residential and non-residential scenarios.
- SHOWER Model Users Guide V4 - Refer to this document to learn how to install and use the ATSDR's SHOWER model, how to engage with the model, and how to read the output generated by the model- You will also learn how to import the results of the SHOWER model into PHAST to calculate hazard quotients and cancer risk.
- Training Video: ATSDR SHOWER Model - Watch this recorded webinar to learn how to run default and site-specific residential scenarios to generate daily exposure concentrations and dermal doses for households using household water contaminated with volatile chemicals.
- Training Video: PHAST Calculator for the SHOWER Model - In this recorded webinar, you will be shown how to import data into PHAST from a SHOWER model run- Once the data are imported, PHAST will calculate default and site-specific doses, air concentrations, hazard quotients, and cancer risk estimates.
- SHOWER Model Technical Document - The technical document for the SHOWER model will help you learn about the SHOWER model's objectives, development, and parameters- It will also include a detailed explanation of the mathematical basis of the model. You can find this technical document on the PHAST resource page along with several other supporting documents for the model. To gain access to PHAST, send a request to phast@cdc.gov.