Creating Pb Risk Mitigation Using Source Apportionment in an EJ Community

在 EJ 社区中使用源解析来降低铅风险

• 批准号: 10750503
• 负责人: Sean Stratton
• 金额: $ 3.63万
• 依托单位: RUTGERS BIOMEDICAL AND HEALTH SCIENCES
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-15 至 2028-09-14
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10750503
• 关键词: 6 year old; Abate; Affect; Behavioral; Biological; Blood; Blood specimen; Brain; Central Nervous System; Ceramics; Child; Child Health; China; Cities; Cognitive; Collaborations; Communities; Complex; Data; Development; Dust; Education; Elements; Environment; Environmental Health; Exposure to; Fellowship; Fingerprint; Future; Goals; Guidelines; Health; Heavy Metals; Home; Home environment; Home visitation; House Dust; Household; Individual; Inductively Coupled Plasma Mass Spectrometry; Industry; Information Dissemination; Ingestion; Inhalation; Intervention; Isotopes; Knowledge; Lead; Lead levels; Low income; Measures; Metals; Minority Groups; Modeling; Municipalities; Neighborhoods; Nervous System; New Jersey; Paint; Population; Poverty; Property; Public Health; Recommendation; Reporting; Research; Risk; Risk Factors; Risk Reduction; Sampling; Screening procedure; Soil; Source; System; Techniques; Testing; Toxic Environmental Substances; Toxic effect; Tracer; Training; United States Environmental Protection Agency; Urbanization; Visit; Writing; blood lead; body system; citizen science; community based research; community burden; community clinic; community organizations; design; drinking water; efficacy testing; environmental justice; exposed human population; exposure pathway; follow-up; hazard; high school; home test; improved; indexing; interest; lead exposure; lead paint; neurodevelopmental effect; particle; people of color; racial disparity; risk mitigation; soil lead; soil sampling; stable isotope; volunteer; ward

Abstract East Trenton, NJ is an environmental justice (EJ) community burdened by lead (Pb). Pb is a cumulative environmental toxicant that can affect multiple organ systems including the central nervous system. Current public health guidelines state there is no safe level of Pb exposure. This project’s priority is to reduce Pb exposure to residents. Partnering with three local community organizations, Isles Inc, East Trenton Collaborative, and New Jersey Future, community volunteers will conduct citizen science collecting soil samples from homes throughout the East Trenton neighborhood. Concurrently, Rutgers, ETC, and NJ Future will host community clinics to offer free blood Pb testing to concerned residents. While no resident will be turned away, a special emphasis will be placed on collecting blood samples from children. A home visit (minimum 100 homes) will be conducted in any home that tested above 200 ppm soil Pb (50% EPA residential soil Pb hazard level) or with a resident’s blood Pb level >0.5µg/dL. Drinking water, paint, soil, and house dust will be collected and analyzed for Pb isotope ratios and metal-to-metal ratios (e.g., Ti/Pb, Sb/Pb, Ga/Pb, etc.). Bayesian mixing models will be created using this tracer data to conduct source apportionment that will identify unique fingerprints for lead sources in blood and house dust. Home specific mitigation strategies will be developed using data from these mixing models that are specific to the unique sources of lead identified in the home environment. If a lead paint abatement is required, our community partner (Isles, Inc.) will conduct the lead paint abatement. Other mitigation strategies, (eg ground cover for exposed soil, entry way dust collecting mats to trap street dust) will also be recommended and a follow up visit to these 100 homes will be conducted 6 months post-mitigation to test the efficacy of the recommended mitigation strategies. During this visit, blood and house dust samples will be collected to determine if there was a decrease in exposure. Finally, dissemination of results will occur through town hall style community presentations and written reports will be provided to our community partners. This project is valuable because it will develop a playbook that can be used as an intervention model for other lead burdened communities on developing personalized abatement strategies available by adding source apportionment to the toolbox for exposure assessment.

抽象的 新泽西州东特伦顿是一个环境正义 (EJ) 社区，铅 (Pb) 是累积性的。 可以影响包括中枢神经系统在内的多个器官系统的环境毒物。 公共卫生指南指出，铅暴露没有安全水平，该项目的首要任务是减少铅。 与三个当地社区组织（Isles Inc、East Trenton）合作。 合作，新泽西州未来，社区志愿者将开展公民科学收集土壤 同时，罗格斯大学、ETC 和 NJ Future 也从整个东特伦顿社区的房屋中采集了样本。 将设立社区诊所，为相关居民提供免费血铅检测，但不会有居民参与。 被拒绝后，将特别重视收集儿童的血液样本。 （至少 100 个家庭）将在任何测试土壤铅含量高于 200 ppm 的家庭中进行（50% EPA 住宅 土壤 Pb 危险水平）或居民血液 Pb 水平 >0.5 µg/dL 饮用水、油漆、土壤和室内灰尘。 将收集并分析 Pb 同位素比和金属与金属比（例如 Ti/Pb、Sb/Pb、Ga/Pb 等）。 将使用此跟踪数据创建贝叶斯混合模型来进行源分配，以识别 血液和室内灰尘中铅来源的独特指纹将是家庭特定的缓解策略。 使用来自这些混合模型的数据开发，这些模型特定于中确定的铅的独特来源 如果需要减少家庭环境中的含铅油漆，我们的社区合作伙伴（Isles, Inc.）将进行该项目。 其他缓解策略（例如暴露土壤的地面覆盖、入口灰尘收集）。 还将建议使用垫子来收集街道灰尘，并对这 100 户家庭进行后续访问 缓解后 6 个月，测试推荐的缓解策略的功效。 并将收集房屋灰尘样本以确定暴露程度是否有所减少。 结果将通过市政厅式的社区演示和书面报告进行传播 提供给我们的社区合作伙伴，这个项目很有价值，因为它将开发一个可以使用的手册。 用作其他铅负担社区制定个性化减排的干预模型 通过将源分配添加到暴露评估工具箱中可以使用策略。