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Exposure to unconventional oil and gas development and all-cause mortality in Medicare beneficiaries
- Longxiang Li ORCID:orcid.org/0000-0003-0893-146X1,
- Francesca Dominici ORCID:orcid.org/0000-0002-9382-01412,
- Annelise J. Blomberg ORCID:orcid.org/0000-0003-1360-25801 nAff4,
- Falco J. Bargagli-Stoffi ORCID:orcid.org/0000-0002-6131-81652,
- Joel D. Schwartz1,3,
- Brent A. Coull1,2,
- John D. Spengler1,
- Yaguang Wei ORCID:orcid.org/0000-0002-6796-75101,
- Joy Lawrence1 &
- …
- Petros Koutrakis1
Nature Energyvolume 7, pages177–185 (2022)Cite this article
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Abstract
Little is known about whether exposure to unconventional oil and gas development is associated with higher mortality risks in the elderly and whether related air pollutants are exposure pathways. We studied a cohort of 15,198,496 Medicare beneficiaries (136,215,059 person-years) in all major US unconventional exploration regions from 2001 to 2015. We gathered data from records of more than 2.5 million oil and gas wells. For each beneficiary’s ZIP code of residence and year in the cohort, we calculated a proximity-based and a downwind-based pollutant exposure. We analysed the data using two methods: a Cox proportional hazards model and a difference-in-differences design. We found evidence of a statistically significant higher mortality risk associated with living in proximity to and downwind of unconventional oil and gas wells. Our results suggest that primary air pollutants sourced from unconventional oil and gas exploration can be a major exposure pathway with adverse health effects in the elderly.
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Data availability
Medicare beneficiary data are available fromhttps://data.medicare.gov/ for researchers who meet the criteria for access to confidential data. UOGD data are available from Enverus (https://www.enverus.com/) via subscription. The UOGD exposure data that support the findings of this study are available from the corresponding author upon reasonable request.
Code availability
All model codes are available athttps://github.com/longxiang1025/Fracking_Health.
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Acknowledgements
This work was made possible by support from the US Environmental Protection Agency (EPA) grant RD-835872 (L.L., A.J.B., J.D.S., B.A.C., J.L., Y.W. and P.K.), the National Institutes of Health (NIH) grant R01 MD012769 (F.D.) and the Climate Change Solutions Fund at Harvard University (F.D.). Its contents are solely the responsibility of the authors and do not necessarily represent the official view of the US EPA, NIH or Harvard University. Furthermore, the US EPA does not endorse the purchase of any commercial products or services mentioned in the publication. We sincerely thank J. M. Wolfson, J. Buonocore and L. Goodwin for editing the manuscript.
Author information
Annelise J. Blomberg
Present address: Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
Authors and Affiliations
Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
Longxiang Li, Annelise J. Blomberg, Joel D. Schwartz, Brent A. Coull, John D. Spengler, Yaguang Wei, Joy Lawrence & Petros Koutrakis
Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
Francesca Dominici, Falco J. Bargagli-Stoffi & Brent A. Coull
Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
Joel D. Schwartz
- Longxiang Li
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- Francesca Dominici
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- Yaguang Wei
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- Joy Lawrence
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Contributions
P.K. and L.L. initiated the study; L.L. synthesized data and performed research; L.L., B.A.C., J.D.S. and F.D. developed the model; and L.L., F.D., A.J.B., F.J.B.-S., Y.W. and P.K. wrote the manuscript. J.L. and J.D.S. helped interpret the results and provided comments.
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Correspondence toLongxiang Li.
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F.D. has served on the HEI Research Committee. The remaining authors declare no competing interests.
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Nature Energy thanks Seth B. C. Shonkoff, Michael Hendryx and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
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Supplementary Figs. 1–10, Notes 1–9 and Tables 1–6.
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Li, L., Dominici, F., Blomberg, A.J.et al. Exposure to unconventional oil and gas development and all-cause mortality in Medicare beneficiaries.Nat Energy7, 177–185 (2022). https://doi.org/10.1038/s41560-021-00970-y
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