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. 2014 Jul 8;122(11):1216–1224. doi: 10.1289/ehp.1307772

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Relationships between the three ZIP code–specific exposure metrics. (A) Normalized exposure metrics for local and regional pollutants (see Supplemental Material, Figure S2A, for full extent of data and outliers). (B) Between-pollutant correlations of exposure for local–local and regional–regional pollutant pairs (see Supplemental Material, Figure S2B, for local–regional pollutant pairs). The bottoms and tops of boxes represent 25th and 75th percentiles, lines within boxes indicate the median, and the whiskers represent 5th and 95th percentiles; n = 193.