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Generic Ssls for the Residential and Commercial/Industrial Scenarios

By Environmental Protection Agency

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Book Id: WPLBN0000119340
Format Type: PDF eBook
File Size: 0.7 MB
Reproduction Date: 2007
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Title: Generic Ssls for the Residential and Commercial/Industrial Scenarios  
Author: Environmental Protection Agency
Volume:
Language: English
Subject: Ecology, Natural resource issues, Environemtal protection
Collections: Environmental Awareness Library Collection
Historic
Publication Date:
Publisher: United States Environmental Protection Agency

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Agency, E. P. (n.d.). Generic Ssls for the Residential and Commercial/Industrial Scenarios. Retrieved from http://www.worldebooklibrary.net/


Description
Excerpt: This appendix provides generic SSLs for 109 chemicals under residential and non-residential (i.e., commercial/industrial) exposure scenarios. Exhibit A-1 presents updated generic SSLs for the residential exposure scenario. The generic SSLs for three of the pathways in this exhibit — inhalation of volatiles in outdoor air, inhalation of fugitive dust, and migration to ground water — were calculated using the same equations and default values for exposure assumptions found in the 1996 SSG (and reproduced in Appendix B of this document). However, they incorporate updated values for dispersion factors, for toxicity, and for other chemical-specific parameters presented in Appendix C. The exhibit also presents new SSLs for concurrent exposures via soil ingestion and dermal absorption that are based, in part, on a new quantitative approach for evaluating dermal absorption. SSLs for combined direct ingestion and dermal absorption exposures to contaminants were calculated according to the method described in Section 3.2.1 of this document. The generic residential SSLs in Exhibit A-1 supersede those published in the 1996 SSG.

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