Studying AFFF Fate and Exposure to Pursue Outcomes that Restore Trust: SAFE PORT

研究 AFFF 命运和暴露以追求恢复信任的结果：SAFE PORT

• 批准号: 10559817
• 负责人: Carla Ng
• 金额: $ 23.44万
• 依托单位: UNIVERSITY OF PITTSBURGH AT PITTSBURGH
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-02 至 2024-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10559817
• 关键词: Address; Affect; Communication; Communities; Complex Mixtures; Data; Deposition; Development; Disasters; Emergency response; Environment; Environmental Health; Environmental Pollution; Environmental Protection; Event; Exercise; Exposure to; Film; Fire - disasters; Flushing; Frustration; Funding; Gases; Goals; Guidelines; Health; Hepatotoxicity; Home; Hot Spot; Immunosuppression; In Situ; Infrastructure; Intervention; Investigation; Laboratories; Language; Lead; Letters; Liquid substance; Malignant Neoplasms; Malignant neoplasm of testis; Military Personnel; Modeling; Municipalities; Nature; Nonprofit Organizations; Oils; Outcome; Plumbing; Poison; Poly-fluoroalkyl substances; Records; Renal carcinoma; Reporting; Research; Risk; Route; Safety; Sampling; Site; Soil; Source; Structure; Surface; System; Testing; Time; Training; Travel; Treatment Efficacy; Trust; Water; Woman; Work; aqueous; authority; community based participatory research; drinking water; efficacy evaluation; efficacy testing; environmental justice; exposed human population; fighting; fire fighter; first responder; ground water; improved; liver injury; meetings; member; meter; network models; response; satisfaction; social; tool; vector; vulnerable community; ward

Project Summary Per- and polyfluoroalkyl substances (PFAS) are highly persistent and toxic chemicals implicated in liver toxicity, various cancers, and immune suppression. PFAS have long been used as active ingredients in specialized firefighting foams. In late July 2021, PFAS-containing firefighting foam was inadvertently introduced into the drinking water system of the Lower 10th Ward of McKeesport, PA, affecting approximately 500 residents in this environmental justice community. Currently, little is known about how this substance behaves within premise plumbing. Our preliminary investigation in December 2021 of residential tap water found two out of 15 homes with PFAS levels well above state and federal guidelines for health, indicating that the contamination has persisted in the premise plumbing despite actions by the water utility to flush the distribution lines. The overall goal of this project is to determine the extent to which PFAS is present in the tap water of the community and surrounding surface soils (due to hydrant flushing) and to evaluate the efficacy of interventions to reduce PFAS exposure. Our hypothesis is that PFAS-containing firefighting foams can form or incorporate into deposits in residential pipes, leading to long-term exposure to residents. Moreover, we expect that flushing hydrants to clear contamination from the distribution system will have led to surface contamination of surrounding soils, providing another route of potential exposure for humans and wildlife. We will use a combination of water and soil testing to determine the extent of contamination, as well as estimate PFAS loads from residential taps by analyzing water filters put in place following the contamination event and by deploying new filters with flow meters. Finally, we will work with key stakeholders in the community and the region to develop a network and model for engagement among residents, utilities, first responders, scientific experts and regulatory agencies. The specific aims are: (1) Determine the extent of contamination in the lower 10th Ward, (2) Test the efficacy of interventions on reducing PFAS exposures over time, and (3) Develop a Community-Led Engagement and Response (CLEaR) framework. The broad impacts of this project are to develop and disseminate best practices to reduce community exposures following a firefighting foam contamination event, and to improve the social and practical infrastructure for community-engaged environmental health emergency response in a sustainable way.

项目摘要 全氟烷基和多氟烷基物质（PFAS）是涉及肝脏毒性的高持久性和毒性化学品， 各种癌症和免疫抑制PFAS长期以来一直被用作专业领域的活性成分， 消防泡沫2021年7月下旬，含有PFAS的消防泡沫被无意中引入 宾夕法尼亚州麦基斯波特下第10区的饮用水系统，影响了大约500名居民， 环境正义社区目前，人们对这种物质在前提下的行为知之甚少 水管工我们在2021年12月对住宅自来水进行的初步调查发现，15户中有2户 PFAS水平远高于州和联邦健康指南，表明污染已经 尽管自来水公司采取行动冲洗配水管，但该公司仍坚持使用房屋管道。整体 该项目的目标是确定PFAS在社区自来水中的存在程度， 周围的表层土壤（由于消防栓冲洗），并评估干预措施的有效性，以减少PFAS exposure.我们的假设是，含有PFAS的消防泡沫可以形成或合并到沉积物中， 住宅管道，导致居民长期接触。此外，我们希望冲洗消防栓清除 分配系统的污染将导致周围土壤的表面污染， 这是人类和野生动物可能接触的另一种途径。我们将使用水和土壤测试相结合的方法 以确定污染的程度，以及估计PFAS负荷从住宅水龙头通过分析 在污染事件发生后安装水过滤器，并部署带流量计的新过滤器。最后， 我们会与社区和区内的主要持份者合作，建立网络和模式， 居民、公用事业、第一反应者、科学专家和监管机构之间的参与。具体 目的是：（1）确定下10区的污染程度，（2）测试干预措施的有效性 随着时间的推移减少PFAS暴露，以及（3）制定社区主导的参与和响应 （CLEaR）框架。该项目的广泛影响是制定和传播最佳做法， 消防泡沫污染事件后的社区暴露，并改善社会和实际 以可持续的方式建立社区参与的环境卫生应急基础设施。