- Air Quality and Health Impacts
- Air Quality Monitoring and Forecasting
- Noise Effects and Management
- Climate Change and Health Impacts
- Atmospheric chemistry and aerosols
- Vehicle emissions and performance
- Urban Transport and Accessibility
- Obesity, Physical Activity, Diet
- Urban Green Space and Health
- Fire effects on ecosystems
- Mobile Health and mHealth Applications
- COVID-19 and Mental Health
- Urban Heat Island Mitigation
- Environmental and Social Impact Assessments
- Energy and Environment Impacts
- Occupational Health and Safety Research
- Health disparities and outcomes
- Fire dynamics and safety research
- Physical Activity and Health
- Environmental Justice and Health Disparities
- Health, Environment, Cognitive Aging
- Hearing Loss and Rehabilitation
- Vehicle Noise and Vibration Control
- Indoor Air Quality and Microbial Exposure
- Behavioral Health and Interventions
University of Washington
2016-2025
Seattle University
2014-2024
Theodore Roosevelt High School
2020-2024
Center for Environmental Health
2013-2022
California Environmental Protection Agency
2021
Washington State Department of Ecology
2021
University Health Network
2017
University of California, Berkeley
2007-2015
Center for Information Technology Research in the Interest of Society
2013-2014
Berkeley Public Health Division
2008-2012
Background— Evidence suggests that longer-term exposure to air pollutants over years confers higher risks of cardiovascular morbidity and mortality than shorter-term exposure. One explanation is the cumulative adverse effects develop longer durations lead genesis chronic disease. Preliminary epidemiological clinical evidence pollution may contribute development hypertension type 2 diabetes mellitus. Methods Results— We used Cox proportional hazards models assess incidence rate ratios (IRRs)...
Fine particulate matter (PM2.5) is a growing public health concern especially in industrializing countries but existing monitoring networks are unable to properly characterize human exposures due low resolution spatiotemporal data. Low-cost portable monitors can supplement both developed and regions increase density of sites This study tests the performance low-cost sensor high concentration urban environments. Seven Portable University Washington Particle (PUWP) were calibrated with optical...
This study examined relationships between greenness exposure and free-living physical activity behavior of children in smart growth conventionally designed communities. Normalized Difference Vegetation Index (NDVI) was used to quantify children's (n=208) at 30-s epoch accelerometer GPS data points. A generalized linear mixed model with a kernel density smoothing term for addressing spatial autocorrelation fit analyze residential neighborhood data. Excluding home during school-hours, an...
Abstract. Health effects attributed to ambient fine particulate matter (PM2.5) now rank it among the risk factors with highest health burdens in world, but existing monitoring infrastructure cannot adequately characterize spatial and temporal variability urban PM2.5 concentrations, nor human population exposures. The development evaluation of more portable affordable instruments based on low-cost sensors may offer a means supplement extend infrastructure, increasing density coverage...
Finely resolved PM2.5 exposure measurements at the level of individual participants or over a targeted geographic area can be challenging due to cost, size and weight monitoring equipment. We propose re-purposing low-cost, portable lightweight Shinyei PPD42NS particle counter as counting device. Previous field deployment this sensor suggests that it captures trends in ambient concentrations, but important characteristics response have yet determined. Laboratory testing was undertaken order...
Growing evidence suggests that close contact with nature brings benefits to human health and well-being, but the proposed mechanisms are still not well understood associations remain uncertain. The Positive Health Effects of Natural Outdoor environment in Typical Populations different regions Europe (PHENOTYPE) project investigates interconnections between natural outdoor environments better well-being.The PHENOTYPE explores underlying at work (stress reduction/restorative function, physical...
Background. Malaria risk may be heterogeneous in urban areas of Africa. Identifying those at highest for malaria lead to more targeted approaches control.
Low-cost air monitoring sensors are an appealing tool for assessing pollutants in environmental studies. Portable low-cost hold promise to expand temporal and spatial coverage of quality information. However, researchers have reported challenges these sensors' operational quality. We evaluated the performance characteristics two widely used sensors, Plantower PMS A003 Shinyei PPD42NS, measuring fine particulate matter compared reference methods, developed regional calibration models Los...
Novel technologies, such as smartphones and small personal continuous air pollution sensors, can now facilitate better estimates of in relation to location. Such information provide us with a understanding about whether how exposures relate residential estimates, which are normally used epidemiological studies. The aims this study were examine (1) the variability levels during day (2) relationship between modeled home school continuously measured exposure different microenvironments (e.g.,...
Background Physical distancing and other COVID-19 pandemic mitigation strategies may have unintended consequences on a number of health behaviors outcomes. The purpose this study was to investigate the association between perceived change in physical activity or exercise mental outcomes over short-term response sample adult twins. Methods This cross-sectional 3,971 identical same-sex fraternal twins (909 pairs, 77% identical) from community-based Washington State Twin Registry. Participants...
Clinical studies have shown that exposure to fine particulate matter (PM2.5) can increase insulin resistance and blood pressure. The epidemiologic evidence for an association of PM2.5 with the incidence type 2 diabetes or hypertension is inconsistent. Even a modest would great public health importance given ubiquity high prevalence conditions.We used Cox proportional hazards models calculate hazard ratios (HRs) 95% confidence intervals (CIs) incident associated in large cohort African...
Sensors are becoming ubiquitous in everyday life, generating data at an unprecedented rate and scale. However, models that assess impacts of human activities on environmental health, have typically been developed contexts where scarcity is the norm. Models essential tools to understand processes, identify relationships, associations causality, formalize stakeholder mental models, quantify effects prevention interventions. They can help explain data, as well inform deployment location sensors...
The novel coronavirus (COVID-19) has impacted the lives of people worldwide since being declared a pandemic on March 11, 2020. Social restrictions aimed at flattening curve may be associated with an increase in stress and anxiety, which use alcohol as coping mechanism. objective this study was to examine if anxiety were changes sample adult twins. Twins allowed us control for genetic shared environmental factors that would confound - mental health relationship. (N = 3,971; 909 same-sex...
Summary: The Imperial County Community Air Monitoring Network (the Network) is a collaborative group of community, academic, nongovernmental, and government partners designed to fill the need for more detailed data on particulate matter in an area that often exceeds air quality standards. employs community-based environmental monitoring process which community researchers have specific, well-defined roles as part equitable partnership also includes shared decision-making determine study...
Exposure to natural outdoor environments (NOE) has been shown in population-level studies reduce anxiety and psychological distress. This study investigated how exposure one's everyday over one week influenced mood among residents of four European cities including Barcelona (Spain), Stoke-on-Trent (United Kingdom), Doetinchem (The Netherlands) Kaunas (Lithuania). Participants (n = 368) wore a smartphone equipped with software applications track location (using mobile ecological momentary...