Levy 2000 - "Particle Concentrations in Urban Microenvironments"

Levy, Jonathan I; Houseman, E. Andres; et al.
"Particle Concentrations in Urban Microenvironments"
Environmental Health Perspectives
November 2000; v.108, n.11; pp.1051-1057.
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The authors measured particulate matter indoors and outdoors in seven microenvironments (subway, bus, restaurant, hospital, gymnasium, museum, store) in Boston. Particle counts for PM 0.3-0.5 were generally higher inside the subway and bus than outdoors, but lower inside the store, hospital, and museum. Particle counts overall were higher inside the subway and bus than outside.