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Evaluating Plant Uptake of Chemical Contaminants in Crops Grown Near Urban Gardening Sites for Human Health Risk Assessment

Archived: Wednesday, August 9, 2023

Sponsored by: U.S. Environmental Protection Agency

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This document provides an assessment of the potential exposure routes, plant uptake pathways, and remediation practices of chemicals contaminants found in crops grown in urban gardening sites. This report will focus on both inorganic and organic pollutants that are considered contaminants of emerging concern (CECs) by the U.S. EPA. The presence of several trace elements and persistent organic pollutants (POPs) in urban soil media were analyzed on the state-level to quantify the potential contamination risk associated with plant uptake mechanisms by crops commonly grown throughout the various regions of the U.S. CECs exposure routes in urban agriculture (UA) scenarios and associated human health risks are assessed. This report also serves to provide potential remediation methods for polluted urban soils, with an emphasis on affordability, accessibility, and sustainability of the methods.

The specific aims of this report will utilize the existing methods used to quantify the concentrations of chemical contaminants in urban soil media to identify regional trends and produce a best practices guide for urban growers. A portion will be dedicated to outlining research gaps which require remediation in order to facilitate a more accurate characterization of potential exposure of CECs to ensure enough data is provided to form national screening levels.

Ashley DeJuliannie, Virtual Student Federal Service Internship Program, U.S. EPA; The College of Saint Scholastica, Duluth, MN (adejuliannie@css.edu)
Ashley is a Virtual Student Federal Service (VSFS) intern working with the EPA's Office of Superfund Remediation and Technology Innovation (OSRTI), where she has helped research data gaps in risk assessment at urban agricultural sites. She obtained her B.S. in Biochemistry from the College of St. Scholastica, and is currently pursuing her M.S. in Chemistry at the same institution.


Alison Flynt, Virtual Student Federal Service Internship Program, U.S. EPA; University of Wyoming, Laramie, Wyoming (aflynt1@uwyo.edu)
Alison is a Virtual Student Federal Service (VSFS) intern working with the EPA’s Office of Superfund Remediation and Technology Innovation (OSRTI), where they have helped research data gaps in risk assessment at urban agricultural sites. They obtained their B.S. in Forensic Biology as well as a minor in Psychology from Embry-Riddle Aeronautical University Prescott Campus in Prescott, Arizona, and will be joining the University of Wyomins Molecular Biology department to pursue their Ph.D. in Molecular Biology.


Aaliyah Pécou, Virtual Student Federal Service Internship Program, U.S. EPA (aapecou@gmail.com)
Aaliyah is a Virtual Student Federal Service (VSFS) intern working with the EPA’s Office of Superfund Remediation and Technology Innovation (OSRTI), where she has helped research data gaps in risk assessment at urban agricultural sites. She obtained her B.S. in Environmental Science with an emphasis in the Biosphere from the University of Arizona.


Michele Burgess, U.S. EPA, Office of Land and Emergency Management (OLEM), Office of Superfund Remediation and Technology Innovation (OSRTI) (Burgess.Michele@epa.gov or 202-566-1061)
Dr. Michele Burgess has over 25 years of experience in human health risk assessment at the state and federal level. She has a B.S. in Chemistry from Auburn University and a Ph.D. in Neuroscience from Georgia State University and was a post-doctoral fellow at Emory University before becoming a state and eventually a federal employee.  Dr. Burgess has experience in emergency response as well as long - term remedial actions.
Dr. Burgess has led many initiatives in the human health risk assessment and participated or led the development of regulatory guidance for human health risk assessment.


Moderator:

A photograph of Jean BalentJean Balent, U.S. EPA Technology Innovation and Field Services Division (balent.jean@epa.gov or 202-566-0832)
Ms Balent is on the staff of the EPA's Technology Innovation and Field Services Division where she has worked to collect and disseminate hazardous waste remediation and characterization information since 2003. Ms Balent manages the Clean Up Information Network website and actively supports online communication and collaboration resources available to EPA. She formerly worked with the US Army Corps of Engineers Environmental Engineering Division in the Buffalo District. Ms Balent was also a member of the SUNY-Buffalo Groundwater Research Group where she constructed and tested large scale models of groundwater flow. Ms Balent has also conducted research relating to the Great Lakes, environmental remediation, and brownfields re-development. She holds a Bachelor's degree in environmental engineering from SUNY-Buffalo and a Master's degree in Information Technology from AIU.


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Rehabilitation Act Notice for Reasonable Accommodation

It is EPA's policy to make reasonable accommodation to persons with disabilities wishing to participate in the agency's programs and activities, pursuant to the Rehabilitation Act of 1973, 29 U.S.C. 791. Any request for accommodation should be made to Michele Burgess at 202-566-1061 or burgess.michele@epa.gov, preferably one week or more in advance of the seminar, so that EPA will have sufficient time to process the request. EPA would welcome specific recommendations from requestors specifying the nature or type of accommodation needed. EPA welcomes specific recommendations from requestors specifying the nature or type of accommodation needed. Please note that CLU-IN provides both alternate phone call-in options and closed captioning for all webinars, and requests for these specific accommodations are not necessary.



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Rehabilitation Act Notice for Reasonable Accommodation

It is EPA's policy to make reasonable accommodation to persons with disabilities wishing to participate in the agency's programs and activities, pursuant to the Rehabilitation Act of 1973, 29 U.S.C. 791. Any request for accommodation should be made to Michele Burgess at 202-566-1061 or burgess.michele@epa.gov, preferably one week or more in advance of the webinar, so that EPA will have sufficient time to process the request. EPA would welcome specific recommendations from requestors specifying the nature or type of accommodation needed. EPA welcomes specific recommendations from requestors specifying the nature or type of accommodation needed. Please note that CLU-IN provides both alternate phone call-in options and closed captioning for all webinars, and requests for these specific accommodations are not necessary.

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By participating in this CLU-IN webinar, you automatically agree to authorize recording of audio and visual content presented during this live event and consent to subsequent use of this recording in the public domain by the U.S. Environmental Protection Agency. This recording may include questions, comments and poll responses provided by you during the live event in addition to your name, voice, image or likeness. This recording will be made available after the conclusion of the live event as part of the CLU-IN webinar archives, and will remain available indefinitely. If you do not wish to consent to the recording, please do not join the live event, and contact Jean Balent at 202-566-0832 or balent.jean@epa.gov to discuss your concerns.

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This webinar is intended solely to provide information to the public. The views and opinions expressed as part of this webinar do not necessarily state or reflect those of the U.S. Environmental Protection Agency. It is not intended, nor can it be relied upon, to create any rights enforceable by any party in litigation with the United States, or to endorse the use of products or services provided by specific vendors. With respect to this webinar, neither the United States Government nor any of their employees, makes any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.