LSPA May 2021 Membership Meeting 

Indoor Air Updates

When: Tuesday, May 18, 2021  
Time: 3:45 PM - 5:00 PM  EST  Please note: registration closes 15 minutes prior to the start of the webinar. 
Live Webinar via Zoom
Important New Registration Note: Registration for LSPA webinars requires a two-step process. 1) Complete the LSPA registration, and 2) In your LSPA confirmation email, you will receive a link to a Zoom "Webinar Registration". You must also complete this registration in order to receive the webinar link, and reminder emails with course materials. 
 For Credit: $50 Member Fee | $110 Non-Member Rate
           No Credit: $0 Member Fee | $25 Non-Member Rate 

  • Jay Peters, Risk Assessment Practice Leader, Haley & Aldrich
  • Marie Rudiman, Senior Risk Assessor & Toxicologist, EnviroRisk Solutions, LLC
  • Rich Rago, Technical Expert, Haley & Aldrich
  • Kristina McCarthy, Senior Technical Specialist, Haley & Aldrich

This membership meeting presentation has been approved by the LSP Board of Registration for 1.0 Technical LSP credit (#1740). To ensure you receive continuing education credit for your attendance in this webinar, please read the LSPA's guidelines here.   


Presentation Description: 

The presentation will focus on two specific indoor air topics: 

  1. Implications of new EPA TSCA Risk Assessment for Trichloroethene
    Health risks associated with trichloroethylene (TCE) are managed at 21E Disposal Sites based on both chronic health effects and developmental health effects associated with short-term exposures. The science indicating developmental health effects from short-term exposure to TCE, however, is not robust and has been widely challenged. USEPA’s Toxic Substances Control Act (TSCA) recently reevaluated the developmental health effects studies and has opted to use other health effects to support risk management. This presentation will summarize the TSCA review and present possible implications for management of risks and response actions associated with vapor intrusion and indoor air evaluations.

The presenters are Jay Peters, Haley & Aldrich and Marie Rudiman, EnviroRisk Solutions, LLC.  

  1. Risk Considerations of Indoor Air Background in Residences, Schools, and Offices
    The presence of volatile organic compounds (VOCs) as a background condition in residential and non-residential indoor air has been well documented. Yet, risks associated with indoor air background conditions may substantially contribute toward, or even exceed, risk management thresholds used by the MassDEP and other states. Consequently, it is important to recognize the implications of indoor air background in support of risk management decision making. This presentation will review the results of a recently published background indoor air study of schools and offices, and will use those results in combination with other published indoor air background data, to characterize health risks associated with residential and non-residential indoor air background VOC concentrations. The implications of these findings on vapor intrusion investigations and response action decisions will be discussed.

The presenters are Rich Rago and Kristina McCarthy, both of Haley & Aldrich.  

3:45 PM  Welcome and Announcements  
3:55 PM  Speaker Introductions
4:00 PM  Program Begins
4:50 PM  Questions & Answers
5:00 PM  Presentation Ends 

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