Current MeMBERS

Dr. DECARLO

Peter DeCarlo, Ph.D. Associate Professor of Environmental Health and Engineering

Ph.D. in Atmospheric Science, 2007 University of Colorado

Research Interests: Using a mixture of research instrumentation and lower cost sensors to measure the chemical composition of particulates and gases in indoors, outdoors, and in the laboratory to better understand the intersection between energy, air quality, health, and climate impacts of human emissions. 

Email:  pdecarl1@jhu.edu

Twitter: @ProfPeteD

 

 

Research scientists and engineers

Ellis Robinson, Ph.D. Assistant Research Engineer

Ph.D. in Chemical Engineering, 2014 Carnegie Mellon, Center for Atmospheric Particle Studies (CAPS)

Research Interests: Air pollution exposure, with a focus on particulate matter composition and sources; indoor air pollution; spatial patterns of air pollution and mobile monitoring. Current research topics are indoor/outdoor air quality, and air pollution exposure in source-rich industrial environments. 

Email:  erobin53@jhu.edu

Twitter: @ShipleyRobinson

 

Benjamin Nault, Ph.D. Assistant Research Scientist

Ph.D. in Earth and Planetary Science, 2015 – University of California, Berkeley, Department of Earth and Planetary Sciences 

Research Interests: Instrumental development to investigate the sources and chemistry of gas-and particle-phase pollutants and how they impact air quality and communities.

Email:  bnault1@jhu.edu

Twitter: @Benjamin_AtmChm


Postdoctoral Researchers

Mina Tehrani, Ph.D., MPH Postdoctoral Fellow

Ph.D. in Environmental Health, 2019 University at Albany / New York State Dept of Health

Research Interests: Assessing chemical aerosol exposures, with a focus on metals. Background is in metals biomonitoring; current research topics are outdoor air pollution and vaping.

Email:  mtehran2@jhu.edu

Twitter: @MinaTehrani5


Graduate Students   

Xinxiu Tian, M.A.Sc, Ph.D. Student

M.A.Sc. in Mechanical Engineering, 2020 University of Toronto
B.S. in Geography and Environmental Engineering, 2018 Johns Hopkins University

Research Interests: Using aerosol mass spectrometer and lower cost sensors to measure the chemical composition of particulates in building HVAC systems. Investigating the impacts of building HVAC systems on concentrations and chemical compositions of particulates.

Email:  xtian4@jhu.edu

Twitter: @TianXinxiu

 

Amira Yassine, MSc, Ph.D. Student

MSc in Chemistry, 2022 American University of Beirut
B.S. in Chemistry, 2020 Lebanese University

Research Interests: Study of atmospheric air pollution resulting from industrial emissions with a focus on metals and volatile organic compounds.  Assess the impact of these industrial emissions on the health of the communities living next to the industrial facilities.

Email:  ayassin2@jhu.edu

   

Shivang Agarwal, B.Tech, Ph.D. Student

B.Tech. in Environmental Engineering, 2019, Delhi Technological University

Research Interests: Understanding Low Cost Sensor measurement science to make data more reliable.

Email:  sagarw38@jhu.edu

Twitter: @ShivangAgarwal_

Website: shivang.net


Undergraduate and masters Students

Adriana Peña, M.S.E Student

BS in Environmental Engineering, 2023 Johns Hopkins University

Research Interests: Use of mathematical modeling and data analysis to develop data-driven solutions that quantify risk, facilitate environmental remediation, and improve human health systems.

Email:  apena7@jhu.edu

 

Melina Krawchick, B.S./M.S.E Student

BS/MSE Environmental Engineering, 2024 Johns Hopkins University

Research Interests: Study of atmospheric air pollution resulting from industrial emissions and assessment of impacts of these emissions on nearby communities.

Email:  mkrawch2@jhu.edu

 

Joey Stanley, B.S./M.S.E Student

BS/MSE Environmental Engineering, 2025 Johns Hopkins University

Research Interests: Transportation pollution measurements with mobile lab and accessible rooftop sensors. Applying data management and creating API tools for alreadys constructed datasets.

Email:  Jstanl28@jhu.edu

 

Lalitha Aiyar, B.S./M.S.E Student

BS/MSE Environmental Engineering, 2025 Johns Hopkins University

Research Interests: Study of atmospheric air pollution in urban areas with an emphasis on nitrous oxides and particulate matter

Email:  laiyar1@jhu.edu

 

Maya Savory, B.S. Student

BS Environmental Engineering and Applied Mathematics & Statistics, 2026 John’s Hopkins University

Research Interests: Study of indoor air pollution through HVAC systems

Email:  msavory1@jhu.edu


Alumni

Tianyi Li, ScM in Environmental Health and Engineering (2020-2022)

Research Interests: Investigating and understanding both indoor and outdoor air pollution and how it affects human health. I’m also interested in broad      environmental issues such as environmental pollution, risk assessment and management, climate change, and environmental justice.

Email:

 

Henry Colby, Ph.D. Candidate, Visiting Graduate Scholar from Drexel University

B.S. in Chemistry, 2017 Lock Haven University

Research Interests: Evaluating impacts of electronic cigarette residue on indoor air. Understanding aminium salt formation, presence, and implications in laboratory and atmospheric aerosol measurements.

Email: