Fig. 1: Global map of PFAS concentration in water. | Nature Geoscience

Fig. 1: Global map of PFAS concentration in water.

From: Underestimated burden of per- and polyfluoroalkyl substances in global surface waters and groundwaters

Fig. 1

a, Sum of concentration of 20 PFAS subject to EU guidance in surface water, groundwater and drinking water samples. Those above the EU drinking water limit of 100 ng l−1 (marked red on scale bar) are circled in red (for known contamination sources (for example, AFFF or non-AFFF)) or black (unknown sources). b, Number of PFAS samples available on a 5° longitude/latitude grid worldwide.

Source data

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