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 每种和多氟烷基物质（PFA）是高度持久的，有毒化学物质与肝毒性有关， 各种癌症和免疫抑制。 PFA长期以来一直用作专业的活性成分 消防泡沫。 2021年7月下旬，含PFA的消防泡沫被无意中引入 宾夕法尼亚州麦基斯波特的下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，对这种物质在前提中的行为知之甚少 管道。我们在2021年12月对住宅自来水的初步调查发现了15套房屋中的两个 PFA级别远高于州和联邦健康指南，表明污染已有 尽管水电站采取了行动来冲洗分配线，但仍在前提管道中持续存在。总体 该项目的目标是确定PFA在社区自来水中存在的程度以及 周围的表面土壤（由于消防栓冲洗），并评估干预措施的功效以降低PFA 接触。我们的假设是，含PFA的消防泡沫可以形成或合并到 住宅管道，导致长期接触居民。此外，我们预计冲洗消防栓会清除 分配系统受到的污染将导致周围土壤的表面污染，提供 人类和野生动植物的潜在暴露途径的另一种途径。我们将结合水和土壤测试 确定污染的程度，以及通过分析估算住宅水龙头的PFA负载 在污染事件发生后，并通过使用流量计部署新过滤器进行了滤水器。最后， 我们将与社区和该地区的主要利益相关者合作，开发一个网络和模型 居民，公用事业，急救人员，科学专家和监管机构之间的参与。具体 目的是：（1）确定下部第10区的污染程度，（2）测试干预措施的功效 随着时间的流逝，PFA降低暴露，（3）建立社区主导的参与和回应 （清除）框架。该项目的广泛影响是开发和传播最佳实践以减少 在消防泡沫污染事件之后，社区暴露于社区，并改善社会和实用性 社区参与环境健康应急响应的基础设施以可持续的方式响应。