Point 3 substance was the most C9a found in concentration 2.303388 ng / L
points 4 substance was in the most C6a found in concentration 0.844709 ng / L. Standard of drinking water C6a substances (PFBA) was < 7 000, ng / L (MHD 2011)
.The substances C7a (PFSPA) and group of substances in C9a (PFNA) currently is not defined the standard of drinking water and groundwater
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