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. 2021 Dec 15;129(12):127005. doi: 10.1289/EHP8584

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EHP is an open-access journal published with support from the National Institute of Environmental Health Sciences, National Institutes of Health. All content is public domain unless otherwise noted.

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Figures 2A to 2F are line graphs titled particulate matter begin subscript 2.5 end subscript, Nitrogen Dioxide, Ozone, Sulfur Dioxide, particulate matter begin subscript 10 end subscript, and Carbon Monoxide, plotting particulate matter begin subscript 2.5 end subscript (microgram meter cubed), ranging from 0 to 16 in increments of 8; Nitrogen Dioxide (parts per billion), ranging from 0 to 30 in increments of 15; Ozone (parts per billion), ranging from 0 to 60 in increments of 30; Sulfur dioxide (parts per billion), ranging from 0 to 8 in increments of 4; particulate matter begin subscript 10 end subscript (microgram per meter cubed), ranging from 0 to 30 in increments of 15; Carbon Monoxide (parts per million), ranging from 0.0 to 1.0 in increments of 0.5 (y-axis) across Racial/ethnic minority residents percentage, ranging from 0 to 100 in increments of 25 (x-axis), respectively. — Relationship between the proportion of racial/ethnic minority residents in census block groups and average criteria air pollution concentrations in the years 1990, 2000, and 2010 for (A) $particulate matter begin subscript 2.5 end subscript$ , (B) $N O_{2}$ , (C) $O_{3}$ , (D) $S O_{2}$ , (E) $particulate matter begin subscript 10 end subscript$ , and (F) CO. For each panel, the thicker portion of the line indicates the 25th to 75th percentile of census block groups, the thin line indicates the 10th to 90th percentiles, the dashed line indicates the 1st to 99th percentiles, and the diamond icon indicates the median. Note: CO, carbon monoxide; Hispanic, Hispanic people of any race(s); NH, non-Hispanic; $uppercase n o begin subscript 2 end subscript$ , nitrogen dioxide; $uppercase o begin subscript 3 end subscript equals ozone$ , ozone; $particulate matter begin subscript 2.5 end subscript equals particulate matter$ , fine particulate matter with aerodynamic diameter less than or equal to $2.5 micrometers$ ; $particulate matter begin subscript 10 end subscript equals particulate matter], particulate matter with aerodynamic diameter less than or equal to$ $10 micrometers$ ; $uppercase s o begin subscript 2 end subscript equals sulfur dioxide$ , sulfur dioxide.