- Air Quality and Health Impacts
- Indoor Air Quality and Microbial Exposure
- Atmospheric chemistry and aerosols
- Plasma and Flow Control in Aerodynamics
- Energy and Environment Impacts
- Inhalation and Respiratory Drug Delivery
- Particle Dynamics in Fluid Flows
- Air Quality Monitoring and Forecasting
- Allergic Rhinitis and Sensitization
- Odor and Emission Control Technologies
- Fluid Dynamics and Turbulent Flows
- Vehicle emissions and performance
- Career Development and Diversity
- Engineering Education and Curriculum Development
- Microgrid Control and Optimization
- Youth Development and Social Support
- Noise Effects and Management
- Engineering Education and Pedagogy
- Occupational exposure and asthma
- Phase Change Materials Research
- Climate Change and Health Impacts
- Asthma and respiratory diseases
- Wind and Air Flow Studies
- Aerodynamics and Acoustics in Jet Flows
- Biomedical and Engineering Education
University of Colorado Boulder
2011-2024
Southern Colorado Clinic
2024
University of Colorado System
2016-2024
San Diego State University
2022-2024
Environmental Health Coalition
2022
Rensselaer Polytechnic Institute
2004-2020
Colorado School of Public Health
2020
State University of New York
2020
Phoenix College
2020
Stanford University
1997-2001
The developing world faces dual crises of escalating energy demand and lack urban sanitation infrastructure that pose significant burdens on the environment. This article presents results a study evaluating feasibility using human feces-derived char as solid fuel for heating cooking potential way to address both crises. determined content elemental composition chars pyrolyzed at 300, 450, 750 °C. Fecal made 300 °C were found be similar in wood bituminous coal, having value 25.6 ± 0.08 MJ/kg,...
Communities of color are disproportionately burdened by environmental pollution and obstacles to influence policies that impact health. Black, Hispanic, Native American students faculty also largely underrepresented in engineering programs the United States. Nearly 80 participants a workshop at 2019 Association Environmental Engineering Science Professors (AEESP) Research Education Conference developed recommendations for reversing these trends. Workshop identified factors success academia,...
The total deposition fraction (TDF) of fine and ultrafine aerosols was measured in a group six healthy adults exposed to polydisperse ambient Boston. Fifteen repeated inhalation-exhalation cycles were conducted during given exposure session. Deposition efficiency for particles with aerodynamic diameter ranging from 63.5 2045 nm determined using the average concentration inhaled exhaled these cycles. efficiencies ranged 7.3±18.7%(240-275 nm) 98.6±28.1%(1545-2045 nm). Subjects exhibited...
Aluminium oxide (Al2O3) and titanium dioxide (TiO2) nanoparticles (NPs) have been widely used in nanotechnology-based products. Recently, researchers the public raised concerns about adverse effects of these NPs biological systems, particularly humans. The aim this study was to investigate possible two common metal on human lung epithelium cells (A549) NP size-dependent cells, considering both primary hydrodynamic particle size. were found inhibit cell viability proliferation at highest...
The objective of this study was to assess the correlation between childhood asthma and potential risk factors, especially exposure indoor allergens, in a Native American population.A case-control St. Regis Mohawk tribe children ages 2-14 years, 25 diagnosed with controls conducted. Exposure assessed based on personal interview measurement mite cat allergens (Der p 1, Fel d 1) dust.A non-significant increased associated self-reported family history asthma, environmental tobacco smoke...
Most homes in the Navajo Nation use wood as their primary heating fuel, often combination with locally mined coal. Previous studies observed health effects linked to this solid-fuel several communities. Emission factors (EFs) for common fuels used by have not been reported using a relevant stove type. In study, two softwoods (ponderosa pine and Utah juniper) high-volatile bituminous coals (Black Mesa Fruitland) were tested an in-use residential conventional (homestove) modified American...
Located between Mexico and the US, San Ysidro/El Chaparral Land Port of Entry (SYPOE) is one busiest border crossings in world. People with activities at SYPOE are exposed to vehicular pollutants, especially particles aerodynamic diameters < 2.5 µm (PM2.5) black carbon (BC), both associated adverse health effects. This study presents first PM2.5 BC concentration measurements collected on Mexican side SYPOE. The oxidative potential (OP) for inhalation dose people were also evaluated....