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EWG's Tap Water Database — 2021 UPDATE

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9-chlorohexadecafluoro-3-oxanonane-1-sulfonate

Status: No national drinking water standard exists

 

9-Chlorohexadecafluoro-3-oxanonane-1-sulfonate is a member of a class of chemicals called per- and polyfluoroalkyl substances or PFAS. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

2017-2019:

FOUND
FOUND ABOVE HEALTH GUIDELINES

1

states detected

1

utilities detected

3,150

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate

Cancer

Harm to the immune system

Hormone disruption

Harm to fetal growth and child development

Harm to the liver

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline protects against applies to the entire class of PFAS detected in water.

ppt = parts per trillion

States reporting 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
North Carolina13,150
MORE
LESS

Filtering technologies that reduce 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate

Activated Carbon

Reverse Osmosis

Utilities with the highest amounts of 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Mars Hill, Town ofMars Hill, NC1 of 11.50 ppt3,150
UtilityLocationTestsAverage levelPeople served