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. 2016 Oct 7;125(4):527–534. doi: 10.1289/EHP442

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Block type as defined in Table 2 for bicycle (left panel) and pedestrian (middle panel) traffic (right panel: land use pattern). Block types were classified if inclusion criteria were met for two of three pollutants; see Figures S1–S3 for individual pollutants. Underlying street and land use data are from Minnesota Geospatial Commons (https://gisdata.mn.gov/).