Fig. 2: Associations between PM10 and 260 annotated metabolites at 4 years of age.

The blue line indicates FDR p = 0.05. The red line indicates p = 0.05. Dimethylxanthine indicates 1,7-dimethylxanthine. The results are extracted from exponential regression models, adjusted for parents’ education at 3 months. For each metabolite, observations above the 99th percentile value were replaced with the 99th percentile value.