Figure 7.

Counts of PECO-relevant references reporting chemical detection frequencies in 50% or more of samples, ratioed against counts of PECO-relevant references reporting any values of detection frequency, by PFAS and medium. ^aThe references counted under “Human Biomatrices” are those which sampled human biomatrices AND at least one of the target indoor or environmental media, though not necessarily for the same PFAS. The counts in this column are specific to which PFAS was sampled in human biomatrices.

Notes: See Table 1 for full chemical names. The shading corresponds to the percentage implied by each fraction shown. Breast milk is included in the food category.