# PFAS Exposure and Thyroid Related Health Outcomes in Communities along the Cape Fear River, NC

> **NIH NIH P42** · NORTH CAROLINA STATE UNIVERSITY RALEIGH · 2022 · $354,961

## Abstract

ABSTRACT 
(Biomedical Research) Research Project 1 
Project 1 is one of two Biomedical Research (BMR) Projects for the proposed “Center for Environmental and 
Health Effects of PFAS” being led by North Carolina State University (NC State). Per- and polyfluoroalkyl 
substances (PFAS) are common drinking water contaminants in NC and around the United States. Little is known 
about how long these chemicals stay in the body or what the human health impacts are. These chemicals have 
been detected in the drinking water of communities living along the Cape Fear River in NC. Working with three 
community groups along the Cape Fear River, we will evaluate PFAS exposure and thyroid health effects to 
people whose drinking water has been contaminated with PFAS. Disruption of thyroid hormones as well as 
metabolic outcomes such as obesity have been associated with PFAS in other populations. The three 
communities have exposure to different types of PFAS in their drinking water. Pittsboro, located on the Haw 
River in the upper region of the Cape Fear River basin, is exposed to historically used PFAS as a result of 
upstream use of firefighting foam, wastewater discharges, and land application of biosolids. The Fayetteville 
private well community is located near a fluorochemical plant that discharged PFAS to both air and water (Cape 
Fear River) since 1980; their wells are believed to be contaminated as a result of air transport. Wilmington, at 
the mouth of the Cape Fear River and downstream of the chemical plant, is exposed to both historically used 
PFAS (e.g., PFOA, PFOS) as well as a number of newly identified PFAS (e.g., GenX, Nafion byproduct 2). To 
study these diverse communities, we plan to recruit 1,200 individuals in the region (300 from Pittsboro, 200 from 
the Fayetteville private well community, and 700 from Wilmington) to evaluate how PFAS levels change over 
time, whether personal characteristics influence PFAS level as well as excretion from the body, and whether 
PFAS, either individually or as a group, influence thyroid outcomes. We plan to include individuals ages 6 and 
over who have lived in the region since July 2016. We will invite participants to clinic visits in Years 1 and 3 to 
collect blood and urine samples for PFAS and clinical analyses, administer questionnaires to obtain information 
on water use history, demographic characteristics, and medical and health outcomes. Working with our 
community partners, we will report back individual and community-level results on a regular basis. We will have 
Community Science Advisory Boards in each community to provide input to the study and ensure that the study 
investigators are well informed about community concerns. We anticipate finding PFAS mixtures in each 
community; we will use statistical approaches that allow us to evaluate individual PFAS while taking into account 
the complex mixture present. This study, with its complex mix of PFAS and racially diverse sample, will provid...

## Key facts

- **NIH application ID:** 10337307
- **Project number:** 5P42ES031009-03
- **Recipient organization:** NORTH CAROLINA STATE UNIVERSITY RALEIGH
- **Principal Investigator:** JANE HOPPIN
- **Activity code:** P42 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2022
- **Award amount:** $354,961
- **Award type:** 5
- **Project period:** 2020-02-28 → 2025-01-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10337307

## Citation

> US National Institutes of Health, RePORTER application 10337307, PFAS Exposure and Thyroid Related Health Outcomes in Communities along the Cape Fear River, NC (5P42ES031009-03). Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/grant/nih/10337307. Licensed CC0.

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