Environmental and Occupational Health, Drexel FIRST Program, Urban Health Collaborative
PhD, Exposure Science and Environmental Epidemiology, Johns Hopkins UniversityMPH, Global Environmental Sustainability and Health, Johns Hopkins UniversityBA, Global Affairs, George Mason University
Josiah Kephart, PhD, MPH, CPH, is an assistant professor in the Department of Environmental and Occupational Health and the Urban Health Collaborative. Kephart joined the Dornsife School of Public Health as part of the Drexel FIRST (Faculty Institutional Recruitment for Sustainable Transformation) program.
Kephart is an environmental epidemiologist who seeks to understand and mitigate the environmental determinants of health disparities. After working in community health in Philadelphia and Honduras, he received an MPH and PhD in exposure science and environmental epidemiology from the Johns Hopkins Bloomberg School of Public Health.
His early research focused on designing and implementing randomized controlled trials of interventions to reduce household air pollution and improve cardiopulmonary health among women in indigenous Aymara communities in Peru. With the support of a Fogarty Global Health Fellowship, his research has provided novel evidence of hazardous emissions from gas stoves, which are widely promoted and distributed to low-resource households in the Global South as a “clean” alternative fuel.
Kephart's recent research focuses on understanding the contribution of climate change, air pollution, and the urban environment to health disparities in Latin America and the U.S. By leveraging the tools of environmental and social epidemiology, his research aims to understand the impacts of large-scale environmental exposures, including extreme heat, air pollution, and climate-related disasters, on health and health inequities at the population level.
- Environmental Exposures
- Urban Health
- Health Disparities
- Environmental and Social Epidemiology
- Climate Change
- Global Health
Kephart JL, Sánchez BN, Moore J, Schinasi LH, Bakhtsiyarava M, Ju Y, Gouveia N, Caiaffa
WT, Dronova I, Arunachalam S, Diez Roux AV, Rodríguez DA. City-level impact of extreme
temperatures and mortality in Latin America. Nature Medicine. (2022). doi: 10.1038/s41591-
022-01872-6. Highlighted in a Nature Research Briefing. Rise in ambient temperature is associated with
increased mortality in Latin America. https://www.nature.com/articles/s41591-022-01893-1
Kephart JL, Fandiño-Del-Rio M, Williams KN, Shade T, Adekunle T, Steenland K, Naeher
LP, Moulton LH, Gonzales GF, Chiang M, Chartier RT, Koehler K, Checkley W. Household
air pollution concentrations after liquefied petroleum gas interventions in rural Peru: Findings
from a one-year randomized controlled trial followed by a one-year pragmatic crossover trial.
Environmental Health Perspectives. (2022); 130(5). doi: 10.1289/EHP10054.
Kephart JL, Delclòs-Alió X, Bilal U, Sarmiento OL, Barrientos-Gutiérrez T, Ramirez-Zea
M, Quistberg AD, Rodríguez DA, Diez Roux AV. The effect of population mobility on
COVID-19 incidence in 314 Latin American cities: a longitudinal ecological study with
mobile phone location data. The Lancet Digital Health. (2021). 3(11):E716-E722. doi:
10.1016/S2589-7500(21)00174-6. Cited in the CDC COVID-19 Science Update (Edition 104) and in two articles from a major
news outlet in Argentina.
Kephart JL, Avila-Palencia I, Bilal U, Gouveia N, Caiaffa WT, Diez Roux AV. COVID-19,
ambient air pollution, and environmental health inequities in Latin American cities. Journal of
Urban Health. (2021); 98(3):428–432. doi: 10.1007/s11524-020-00509-8.
Gouveia N, Kephart JL, Dronova I, McClure L, Granados JAT, Morales Betancourt R,
Cortinez-O’Ryan A, Texcalac JT, Martinez-Folger K, Rodriguez D, Diez Roux AV. Ambient
fine particulate matter in Latin American cities: levels, population exposure, and associated
urban factors. Science of the Total Environment. (2021); 772:145035. doi:
Kephart JL, Fandiño-Del-Rio M, Williams KN, Malpartida G, Lee A, Steenland K, Naeher
LP, Gonzales GF, Chiang M, Checkley W, Koehler K. Nitrogen dioxide exposures from LPG
stoves in a cleaner-cooking intervention trial. Environment International. (2021); 146:106196.
Checkley W, Williams KN, Kephart JL, Fandiño-Del-Rio M, Steenland NK, Gonzales GF,
Naeher LP, Harvey SA, Moulton LH, Davila-Roman VG, Goodman D, Tarazona-Meza C,
Miele CH, Simkovich S, Chiang M, Chartier RT, Koehler K. Effects of a Household Air
Pollution Intervention with Liquefied Petroleum Gas on Cardiopulmonary Outcomes in Peru:
A Randomized Controlled Trial. American Journal of Respiratory and Critical Care
Medicine. (2021); 203(11):1386-1397. doi: 10.1164/rccm.202006-2319OC.
Fandiño-Del-Rio M, Kephart JL, Williams KN, Malpartida G, Boyd Barr D, Steenland K, Koehler K, Checkley W. Household air pollution and blood markers of inflammation: a cross-sectional analysis. Indoor Air. (2021). 31:1509-1521. doi: 10.1111/ina.12814.
Kephart JL, Fandiño-Del-Rio M, Koehler K, Bernabe-Ortiz A, Miranda JJ, Gilman RH,
Checkley W. Indoor air pollution concentrations and cardiometabolic health across four
diverse settings in Peru: a cross-sectional study. Environmental Health. (2020); 19:59. doi: 10.1186/s12940-020-00612-y.
Kephart JL, Fandiño-Del-Rio M, Williams KN, Malpartida G, Steenland K, Naeher L,
Gonzales GF, Chiang, M, Checkley W, Koehler K. Nitrogen dioxide exposures from biomass
cookstoves in the Peruvian Andes. Indoor Air. (2020); 30:735–744. doi: 10.1111/ina.12653.
Williams KN, Kephart JL, Fandiño-Del-Rio M, Simkovich S, Koehler K, Harvey S,
Checkley W, CHAP trial Investigators. Exploring the impact of a liquefied petroleum gas intervention on time use in rural Peru: A mixed methods study on perceptions, use, and implications of time savings. Environment International. (2020); 145:105932. doi:
Williams KN, Kephart JL, Fandiño-Del-Rio M, Condori L, Koehler K, Moulton LH,
Checkley W, Harvey S. Beyond cost: Exploring fuel choices and the socio-cultural dynamics
of liquefied petroleum gas stove adoption in Peru. Energy Research and Social Science.
(2020); 66:101591. doi: 10.1016/j.erss.2020.101591.
Williams KN, Kephart JL, Fandiño-Del-Rio M, O’Brien CJ, Moulton LH, Koehler K,
Harvey S, Checkley W. Use of liquefied petroleum gas in Puno, Peru: Fuel needs under
conditions of free fuel and near-exclusive use. Energy for Sustainable Development. (2020);
58:150-157. doi: 10.1016/j.esd.2020.07.011.
Fandiño-Del-Rio M, Kephart JL, Williams KN, Moulton LH, Steenland K, Checkley W,
Koehler K. Household air pollution exposure and associations with household characteristics
among biomass cookstove users in Puno, Peru. Environmental Research. (2020); 191:110028.
Burrowes VJ, Piedrahita R, Pillarisetti A, Underhill L, Fandiño-Del-Rio M, Johnson M,
Kephart JL, et al. Comparison of next-generation portable pollution monitors to measure
exposure to PM2.5 from household air pollution in Puno, Peru. Indoor Air. (2020); 00:1–14.
See Dr. Kephart's complete list of publications on Google Scholar