Occurrence of perfluoroalkyl carboxylates and sulfonates in drinking water utilities and related waters from the United States

Oscar Quiñones, Shane A Snyder

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

The prevalence and persistence of perfluoroalkyl compounds (PFCs) in environmental and biological systems has been well documented, and a rising number of reports suggest that certain PFCs can result in adverse health effects in mammals. As traditional water sources become increasingly impacted by wastedischargeandthedemandfor planned potable reuse grows, there is recent interest in determining PFC occurrence in drinking water supplies. Here we report monitoring results from drinking water treatment facility samples collected across the UnitedStates,andfromassociatedsurface,ground,andwastewater sources.Usingautomatedsolidphaseextraction(SPE)andisotopedilution liquid chromatography/tandem mass spectrometry (LC/ MS-MS), samples were screened for perfluorohexanoic acid (PFHxA), perfluorohexanesulfonate (PFHxS), perfluorooctanoic acid (PFOA), perfluorooctanesulfonate (PFOS), perfluorononanoic acid (PFNA) perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUdA), and perfluorododecanoic acid (PFDoA). Method reporting limits (MRLs) were established at 1.0 ng/L for all monitored PFCs except PFOA, for which the MRLwasset at 5.0 ng/L given elevated proceduralandinstrumental background levels. PFOS was the only investigated PFC detected in minimally impacted surface waters, with individual site averages of 2.0 ng/L and lower. Conversely, wastewater treatment plant (WWTP) effluents and other highly impacted waters had almost 100% detection frequency for all PFCs except PFUdA and PFDoA, which were not detected above MRL in any samples. Of the investigated PFCs, PFOA averaged the highest overall concentration at any site at 115 ng/L. Substantial impacts from treated wastewater generally caused increased summedPFCconcentrationsatdownstreamdrinkingwaterfacilities, although levels and distribution suggest geographical variability. No discernible differences between influent and effluent PFC levels were observed for drinking water facilities. Removal of PFCs, however, was observed at an indirect potable reuse facility usingmicrofiltrationandreverseosmosisforwastewatertreatment, in which case all PFC levels in effluents were below the MRL.

Original languageEnglish (US)
Pages (from-to)9089-9095
Number of pages7
JournalEnvironmental Science and Technology
Volume43
Issue number24
DOIs
StatePublished - Dec 15 2009
Externally publishedYes

Fingerprint

perfluorooctanoic acid
sulfonate
Drinking Water
Effluents
drinking water
Water
acid
Geographical distribution
Mammals
Liquid chromatography
Biological systems
Water treatment
Surface waters
Water supply
Wastewater treatment
water
Mass spectrometry
Wastewater
Health
effluent

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Occurrence of perfluoroalkyl carboxylates and sulfonates in drinking water utilities and related waters from the United States. / Quiñones, Oscar; Snyder, Shane A.

In: Environmental Science and Technology, Vol. 43, No. 24, 15.12.2009, p. 9089-9095.

Research output: Contribution to journalArticle

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