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What's New

Table of Contents

For assistance/questions please use the rsl table contact us page

The What's New section keeps users informed of changes to: toxicity values, exposure parameters, chemical-specific parameters, equation formats and any other SL changes. Please check this site frequently to be advised of any recent changes.

November, 2014


May, 2014

November, 2013

June, 2013

May, 2013

January, 2013

In the November 2012 Update, the third to the last bullet that identifies the updates to the recreator landuse scenario, the following additional information may be useful.

The calculator-based recreator landuse scenario shares the following identical default exposure parameters with the residential landuse scenario: body surface area, ingestion rates, body weight and soil adherence factors. Default recreational exposure parameters are not provided for exposure frequency, exposure time and events per day because recreational activities vary greatly and should be derived on a site-specific basis. Please see the User's Guide for the exposure equations and a conceptual model of quantified pathways.

November, 2012

May, 2012

November, 2011

June, 2011

May, 2011

February, 2011

November 11, 2010

May 17, 2010

December 7, 2009

April 15, 2009

October 16, 2008: Summary of Changes Posted

September 12, 2008

July 7, 2008

July 3, 2008

July 2, 2008

June 20, 2008

June 17, 2008

June 13, 2008

May 2008

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