Delaware River Basin Commision - New Jersey€¦ · Stewardship Program ... 800 1,000 1,200 2007 2008 2009 2015 RM 50 2007 2008 2009 2015 RM 68 2007 2008 2009 2015 ... Delaware River

Delaware River Basin Commission

PFAS in Surface Water and Fish Tissue

from the Delaware River

Ron MacGillivray, Ph.D.Senior Environmental Toxicologist

[email protected]

ACS National MeetingAugust 21, 2016 1

Non-tidal

Tidal

Delaware River Basin

2

Analytical Methods Water grab samples in HDPE bottles Fish samples are composites of five standard fillets. Analytical Parameters & Methods: 13 compounds using LC/MS/MS Method Analysis by Axys Analytical LTD

Carboxylates

4 Perfluorobutanoate (PFBA)

5 Perfluoropentanoate (PFPeA)

6 Perfluorohexanoate (PFHxA)

7 Perfluoroheptanoate (PFHpA)

8 Perfluorooctanoate (PFOA)

9 Perfluorononanoate (PFNA)

10 Perfluorodecanoate (PFDA)

11 Perfluoroundecanoate (PFUnA)

12 Perfluorododecanoate (PFDoA)

Sulfonates and Sulfonamide

4 Perfluorobutanesulfonate (PFBS)

6 Perfluorohexanesulfonate (PFHxS)

8 Perfluorooctanesulfonate (PFOS)

8

Perfluorooctane sulfonamide

(PFOSA)

# of carbons

3

Stewardship Programwww.epa.gov/oppt/pfoa/pubs/stewardship/

4

In 2006, EPA invited eight major fluoropolymer and telomermanufacturers to join in a global stewardship program Commit to 95 percent reduction in PFOA, precursor

chemicals, and higher homologue chemicals by 2010 Commit to working toward the elimination of these

chemicals from emissions and products by 2015 Report annual progress Analytical standards and laboratory methods for

reporting

0

200

400

600

800

1,000

1,200

2007 2008 2009 2015RM 50

2007 2008 2009 2015RM 68

2007 2008 2009 2015RM 80

2007 2008 2009 2015RM 90

2007 2008 2009 2015RM 105

2007 2008 2009 2015RM 131

PFN

A(C

9)

ng

/L

NJDWQI proposed MCL 13 ng/L

Source water> RM 95

flow 5

6

0

10

20

30

40

50

60

70

80

90

RM 50 68 80 90 105 131

PFO

A +

PFO

S n

g/L

2007 2008 2009 2015 each site

PFOS

PFOA

EPA DW health advisory 70 ng/LSource water >RM 95

flow

1

10

100

1,000

RM 6 26 50 68 71 75 80 85 88 95 105 131

PFBA C4 PFPeA C5

PFHxA C6 PFHpA C7

PFOA C8 PFNA C9

PFUnA C11 PFOS C8S

2015

flow

C5 C6PFOSPFOA

1

10

100

1,000

*

Drinking Water Source> RM95

PFAS (ng/L) decreases in surface water vary by compound

2007C9

Longer chain

C11, C10, C9, and C8 appear to be decreasing

PFOA & PFOS FOD 100%

Shorter chain C4 to C7 decreasing

C6 and C5 highest PFAS conc in 2015

Ongoing research into PFAS effects on aquatic life, wildlife and human health

8

Summary of PFAS in Surface Waters of Delaware Estuary

9

10

0

10

20

30

40

50

60

2004 2005 2006 2007 2010 2012

ng/gfillet

sampling year

PFOS (C8) Smallmouth Bass From Delaware River

RM 149

RM 183

RM 246

RM 289

MDH fish consumption advisory 1 meal/wk >40 ng/g

11

0

10

20

30

40

50

60

2004 2005 2006 2007 2010 2012

ng/g fillet

sampling year

PFOS (C8) in White Sucker from Delaware River

RM 149

RM 183

RM 246

RM 289

EDL <5.0 ng/g in 2004 to 2010EDL < 1.0 ng/g in 2012

12

0

10

20

30

40

50

PFOSA PFOS PFDoA PFUnA PFDA PFNA

2012

0

10

20

30

40

50

PFOSA PFOS PFDoA PFUnA PFDA PFNA

White Perch (tidal)Channel Catfish (tidal)Smallmouth Bass (non-tidal)White Sucker (non-tidal)

2004

PFAS (ng/g) in fish fillet vary by species, location and year

RM 58 & RM 149

Concentrations of PFAS in resident fish of the Delaware River vary by species, sample location and sample year.

Concentrations appear to be decreasing for longer chain compounds e.g., PFNA (C9) and PFUnA (C11), with some inconsistent results e.g., PFOS and PFOSA.

14

Summary of PFAS in Fish Filet

Surface Water – 2016 sampling in non-tidal river

Fish – compare tidal and non-tidal 2015 data (when available) to 2004, 2005, 2006, 2007, 2010, 2012 data

Sediment – 2016 sampling in tidal river

Fish – 2016 sampling in Delaware Bay (different species)

Next Steps

15

Delaware River Basin Commission

Thank you!

Ron MacGillivray, Ph.D.Senior Environmental Toxicologist

[email protected]

ACS National MeetingAugust 21, 2016

16