An interactive PFAS map  

Have you ever wondered what actually comes out of your kitchen sink tap?

PFAS and us aims to answer some of these questions, especially since the topic of these ‘forever chemicals’ seems to be omnipresent, from traditional news channels to social media, but most importantly, scientific publications.

Since the earlier days of the initial Environmental Protective Agency (EPA) announcement of testing for 4 parts-per quadrillion (ppq), to the final guidelines announced in 2024 (Figure 1), SCIEX has been at the forefront of detecting, identifying and quantifying PFOA, PFOS and other PFAS compounds in drinking water. While the team expands PFAS-testing beyond drinking water to wastewater, food contact materials (FCMs) and consumer goods, we are excited to launch this project driven by real-world samples!

PFAS and us

Our collaborator (Eurofins, Sacramento, CA) analyzed a collection of tap water from our associates, testing for PFOA, PFOS, PFNA, and PFHxS. The interactive map shown here represents the location of our associates and the source of the drinking water samples, as well as the tested results.

Come take a look and discover the landscape of water testing from the PFAS perspective!

Final MCL measurements for PFAS testing (source: EPA)

CompoundFinal MCLGFinal MCL (enforceable levels)
PFOAZero4.0 parts per trillion (ppt) (also expressed as ng/L)
PFOSZero4.0 ppt
PFHxS10 ppt10 ppt
PFNA10 ppt10 ppt
HFPO-DA (commonly known as GenX Chemicals)10 ppt10 ppt
Mixtures containing two or more of PFHxS, PFNS, HFPO-DA and PFBS1 (unitless)1 (unitless)
Hazard IndexHazard Index
PFAS level (ng/L)
0
PFAS total (ng/L)

Source:
PFHxS
PFOS
PFOA
PFNA
All values (ng/L)