This Research Brief summarizes literature characterizing emissions from natural gas flaring, quantifying human exposures to flaring, and assessing potential inequalities in exposure to flaring. It is part of a series of Research Briefs summarizing literature about potential exposures and health effects associated with UOGD.

This Research Brief describes the FracFocus database, a public national registry for reporting the chemicals used in hydraulic fracturing fluid. The Brief summarizes published reviews of the database, supplements these reviews with an updated description of data posted to FracFocus, and offers ideas for how the FracFocus database might be useful for research about potential human exposures associated with UOGD. It is part of a series of Research Briefs summarizing literature about potential exposures and health effects associated with UOGD.

This Research Brief provides a summary of the UOGD epidemiology studies published since the HEI Energy Research Committee conducted its systematic review of this literature. It provides information on study methods and the exposures, health outcomes, and regions that have been studied. This document is not a systematic review of the literature; instead, it provides a general update on the UOGD analytical epidemiology literature. It is part of a series of Research Briefs summarizing literature about potential exposures and health effects associated with UOGD.

Ariana A, Cozzarelli I, Danforth C, McDevitt B, Rosofsky A, Vorhees D. Pathways for Potential Exposure to Onshore Oil and Gas Wastewater: What We Need to Know to Protect Human Health. Geohealth. 2025 Apr 3;9(4):e2024GH001263. doi: 10.1029/2024GH001263. PMID: 40182626; PMCID: PMC11966568.

A. M. Rule et al., Principles and elements for creating and sustaining successful PPP for Environmental Community Monitoring Programs: Results from a scoping review and interviews. Environmental Justice (2024), doi:10.1089/env.2024.0025. 

Rosofsky AS, Vorhees DJ. 2023. Bringing Multisectoral and Multidisciplinary Stakeholders Together to Optimize Environmental Health Research. GeoHealth 7:e2022GH000746; doi:10.1029/2022GH000746.

Kang M, Boutot J, McVay RC, Roberts KA, Jasechko S, Perrone D, et al. 2023. Environmental risks and opportunities of orphaned oil and gas wells in the United States. Environ Res Lett 18:074012; doi:10.1088/1748-9326/acdae7.