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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Environ Res. 2021 Aug 19;203:111907. doi: 10.1016/j.envres.2021.111907

Figure 1. Identification of metabolic features associated with PM2.5 exposure among studied infants.

Figure 1.

A) Type 1 Manhattan plot for features in the HILIC column (positive ion mode), VIP score vs m/z. Red dots represent features that were positively associated with PM2.5 exposure and green dots represent features that were negatively associated with PM2.5 exposure; B) Type 1 Manhattan plot for features in the C18 column (negative ion mode), VIP score vs mass-to-charge.