Grantee Research Project Results
2022 Progress Report: Soil/dust ingestion for children: a modeling and data collection approach based on regional and sociodemographic differences
EPA Grant Number: R840201Title: Soil/dust ingestion for children: a modeling and data collection approach based on regional and sociodemographic differences
Investigators: Ferguson, Alesia , Solo-Gabriele, Helena , Beamer, Paloma
Institution: North Carolina Agricultural and Technical State University , University of Arizona , University of Miami
Current Institution: North Carolina Agricultural and Technical State University , University of Miami , University of Arizona
EPA Project Officer: Hahn, Intaek
Project Period: July 1, 2021 through June 30, 2024 (Extended to June 30, 2025)
Project Period Covered by this Report: July 1, 2021 through June 30,2022
Project Amount: $1,340,704
RFA: Estimating Childrens Soil and Dust Ingestion Rates for Exposure Science (2020) RFA Text | Recipients Lists
Research Category: Human Health , Children's Health
Objective:
The objective of this research work is to conduct risk assessment estimates for daily soil and dust ingestion for children aged 6 months to 6 years by expansion of an existing validated model to simulate soil (based on previous studies) and dust ingestion (based on previous data and current data being gathered in this project) across various geographic regions (i.e., North Carolina, Florida, and Arizona), built environments (i.e., urban, suburban, rural) and sociodemographic backgrounds. Data gathered in this project includes the use of videotaping and video-translation methodologies and dust collection to simulate dust ingestion rates.
Progress Summary:
Videotaping and dust collection protocols have been developed for field collection. Project team members have recruited and collected behavior and home data for 235 parents and their children through surveys and also conducted 36 field studies to videotape children and collect dust samples in the home. Dust analysis protocols have been developed for the quantification of dust/soil mass found on surfaces in homes. Module development and algorithms (for dermal and ingestion exposure) are being refined to look at soil/dust ingestion for young children across various environments for indoor and outdoor areas.
Future Activities:
The team from the three Universities will continue subject recruitment, survey completion and collection of data in the field (videotaping and dust collection). At the same time dust analysis continues at the University of Miami. Video-translation will start in October or November at NCAT. Module development will also continue at University of Arizona that will allow for estimates of soil dust ingestion across age groups using the children’s activity patterns at University of Arizona. Modeling will also occur for soil ingestion using data from previous studies. The project just received IRB approval for the next year (good until June of 2023).
Journal Articles:
No journal articles submitted with this report: View all 7 publications for this projectSupplemental Keywords:
Children’s Behavior, Soil Ingestion, Dust Ingestion, Children’s Video ActivitiesRelevant Websites:
DIRT: Dust Ingestion Children Study Exit
Progress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.