Analyzing individual exposure in urban areas offers several challenges where both the
individual's activities and air pollution levels demonstrate a large degree of spatial and …

The advent of the exposome concept, the advancement of mobile technology, sensors, and
the “internet of things” bring exciting opportunities to exposure science. Smartphone apps …

This accessible, alphabetical guide provides concise insights into a variety of digital
research methods, incorporating introductory knowledge with practical application and …

Objectives To investigate relations of walking, bicycling and vehicle time to neighborhood
walkability and total physical activity in youth. Methods Participants (N= 690) were from 380 …

The emergence of portable global positioning system (GPS) receivers over the last 10 years
has provided researchers with a means to objectively assess spatial position in free-living …

Traditional methods of collecting spatial and temporal use data are burdensome to both
tourists and researchers, and they often lack needed accuracy. This article examines …

Objectives Utilitarian and recreational walking both contribute to physical activity. Yet
walking for these two purposes may be different behaviors. We sought to provide …

Understanding space in parks and protected areas is becoming more important as
recreation and other uses in these areas change and increase. Spatial demand and space …

Continuous personal monitoring is the benchmark for air pollution exposure assessment.
Black carbon (BC) is a strong marker of primary combustion like vehicle and biomass …

OBJECTIVES: To compare adolescents' physical activity at home, near home, at school,
near school, and at other locations. METHODS: Adolescents (N= 549) were ages 12 to 16 …