Research Article

Time-Location Patterns of a Population Living in an Air Pollution Hotspot

Figure 2

Comparison of the weighted mean percentages of time spent in each microenvironment between the Camden study cohort ( 𝑁 = 335) and the U.S. general population ( 𝑁 = 9368) [9]. (Red bars are the weighted NHAPS means, which represent the general U.S. population levels.)
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(a) by gender
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(b) by age group
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(c) by season
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(d) by day of the week