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Samon SM, Rohlman D, Tidwell L, Hoffman PD, Oluyomi AO, Walker C, Bondy M, Anderson KA. Determinants of exposure to endocrine disruptors following hurricane Harvey. Environ Res 2023; 217:114867. [PMID: 36423664 PMCID: PMC9884094 DOI: 10.1016/j.envres.2022.114867] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Hurricane Harvey was a category four storm that induced catastrophic flooding in the Houston metropolitan area. Following the hurricane there was increased concern regarding chemical exposures due to damage caused by flood waters and emergency excess emissions from industrial facilities. This study utilized personal passive samplers in the form of silicone wristbands in Houston, TX to both assess chemical exposure to endocrine disrupting chemicals (EDCs) immediately after the hurricane and determine participant characteristics associated with higher concentrations of exposure. Participants from the Houston-3H cohort (n = 172) wore a wristband for seven days and completed a questionnaire to determine various flood-related and demographic variables. Bivariate and multivariate analysis indicated that living in an area with a high Area Deprivation Index (ADI) (indicative of low socioeconomic status), identifying as Black/African American or Latino, and living in the Houston neighborhoods of Baytown and East Houston were associated with increased exposure to EDCs. These results provide evidence of racial/ethnic and socioeconomic injustices in exposure to EDCs in the Houston Metropolitan Area. Since the multiple regression models conducted did not fully explain exposure (0.047 < R2 < 0.34), more research is needed on the direct sources of EDCs within this area to create effective exposure mitigation strategies.
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Affiliation(s)
- S M Samon
- Department of Environmental & Molecular Toxicology, Oregon State University, Corvallis, OR, USA.
| | - D Rohlman
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - L Tidwell
- Department of Environmental & Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - P D Hoffman
- Department of Environmental & Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - A O Oluyomi
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA; Gulf Coast Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
| | - C Walker
- Gulf Coast Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
| | - M Bondy
- Department of Epidemiology and Population Health, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - K A Anderson
- Department of Environmental & Molecular Toxicology, Oregon State University, Corvallis, OR, USA.
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Messier K, Tidwell L, Ghetu C, Rohlman D, Scott R, Bramer L, Dixon H, Waters K, Anderson K. Indoor versus Outdoor Air Quality during Wildfires. Environ Sci Technol Lett 2019; 6:696-701. [PMID: 32095488 PMCID: PMC7039657 DOI: 10.1021/acs.estlett.9b00599] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The human behavioral modification recommendations during wildfire events are based on particulate matter and may be confounded by the potential risks of gas-phase pollutants such as polycyclic aromatic hydrocarbons (PAHs). Moreover, the majority of adults spend over 90 percent of their time indoors where there is an increased concern of indoor air quality during wildfire events. We address these timely concerns by evaluating paired indoor and outdoor PAH concentrations in residential locations and their relationship with satellite model-based categorization of wildfire smoke intensity. Low-density polyethylene passive air samplers were deployed at six urban sites for 1 week in Eugene, Oregon with matched indoor and outdoor samples and 24 h time resolution. Samples were then quantitatively analyzed for 63 PAH concentrations using gas-chromatography-tandem mass spectrometry. A probabilistic principal components analysis was used to reduce all 63 PAHs into an aggregate measure. Linear regression of the first principal component against indoor versus outdoor shows that indoor gas-phase PAH concentrations are consistently equal to or greater than outdoor concentrations. Regression against a satellite-based model for wildfire smoke shows that outdoor, but not indoor gas-phase PAH concentrations are likely associated with wildfire events. These results point toward the need to include gas-phase pollutants such as PAHs in air pollution risk assessment.
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Affiliation(s)
- K.P. Messier
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
| | - L.G. Tidwell
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
| | - C.C. Ghetu
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
| | - D. Rohlman
- College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon, 97331, United States of America
| | - R.P. Scott
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
| | - L.M. Bramer
- Computational Analytics Division, Pacific Northwest National Laboratory, Richland, 99352, Washington, United States of America
| | - H.M. Dixon
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
| | - K.M. Waters
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99352, United States of America
| | - K.A. Anderson
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, 97331, United States of America
- Corresponding author: Kim A. Anderson, Oregon State University, Department of Environmental and Molecular Toxicology, 1007 Agricultural and Life Sciences Building, Corvallis, Oregon 97331, USA, Telephone: (541) 737-8501, Fax: (541) 737-0497,
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