DEQ-CFW_00049857

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DEQ-CFW 00049857

Recently discovered perfluoroalkyl ether carboxylic
acids occur at substantially higher concentrations
than traditional is and GenX
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F
Raw water I+I� ( r
U
Pre -ozone effluent i F OH
I I U
Settled water i !-----�� PFO2HxA
Settled -ozone effluent
BAG effluent
Finished water
I 1000 100,000 150,000 200,000 250,000 300,000
Peak area counts of emerging PFASs
a PFPrOPrA PFMOAA PFMOPrA ■ PFMOBA ::::: PFO2HxA PFO3OA 0 PFO4DA
Sun at al. (2016) ES&T Letters
Bill, these concentrations are estimated from the GenX response as we do not yet have authentic standards apart from
GenX
DEQ-CFW 00049858