SUPPLEMENTARYDATA

Ocurrence of perfluorinated compounds in water and sediment of L’Albufera Natural Park (València, Spain)

Y. Picoa, C. Blascoa, M. Farréb, D. Barcelób,c,d

aFood and Environmental Safety Research Group, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain.

bDepartment of Environmental Chemistry, IDAEA-CSIC, Barcelona, Spain

cCatalan Institute for Water Research (ICRA), Girona, Spain

dKing Saud University, Riyadh, Saudi Arabia

Pico et al. (2011) Supporting Information Page 1 of 2

Table S4. Multiple stepwise regression between the different PFCs, Y= B0 + B1X1 + B2X2 + .....(n= 12)

Compound / Y / B0 / Bj / Xj / R2 / Sig.a
PFBS / [PFBS]wb / 0.132 / B1= 0.907
B2= 1.296 / X1= [PFPA]
X2= [PFDS] / 0.780 / 0.001
[PFBS]s / 0.000 / B1= -1.000 / X1= [PFPA] / 1.000 / 0.000
PFPA / [PFPA]wc / 0.116 / B1= 0.857
B2= -1.343 / X1= [PFBS]
X2= [PFDS] / 0.801 / 0.001
[PFPA]s / 0.000 / B1= 1.000 / X1= [PFBS] / 1.000 / 0.000
PFHxA / [PFHxA]w / -0.400 / B1= 0.142
B2= -1.917
B3= 1.026
B4= 0.581
B5= 0.818 / X1= [PFOA]
X2= [i,p-PFNA]
X3= [PFNA]
X4= [PFPA]
X5= [PFDS] / 0.991 / 0.000
[PFHxA]s / 0.012 / B1= 0.005 / X1= [PFOA] / 0.531 / 0.028
PFHpA / [PFHpA]w / -0.110 / B1= 1.549
B2= 1.302
B3= -3.995 / X1= [PFDA]
X2= [PFHxA]
X3= [PFDS] / 0.965 / 0.000
[PFHpA]s / 0.011 / B1= 0.437 / X1= [PFDA] / 0.720 / 0.008
PFOA / [PFOA]w / 6.276 / B1= 15.653
B2= 6.600 / X1= [PFHxA]
X2= [i,p-PFNA] / 0.831 / 0.000
[PFOA]s / -0.710 / B1= 3.560
B2= 67.590 / X1= [PFDS]
X2= [PFHxA] / 0.741 / 0.002
PFNA / [PFNA]w / -0.437 / B1= 1.518
B2= 0.361 / X1= [i,p-PFNA]
X2= [PFHxA] / 0.968 / 0.000
[PFNA]s / -0.156 / B1= 9.971
B2= 0.124 / X1= [PFBS]
X2= [PFOS] / 0.746 / 0.002
i,p-PFNA / [i,p-PFNA]w / -0.265 / B1= 0.513
B2= -0.449
B3= 0.017
B4= 0.261
B5= 0.520
B6= 0.015 / X1= [PFNA]
X2= [PFHxA]
X3= [PFOA]
X4= [PFPA]
X5= [PFDS]
X6= [PFOS] / 0.999 / 0.000
PFOS / [PFOS]w / 5.032 / B1= 4.481 / X1= [i,p-PFNA] / 0.850 / 0.000
[PFOS]s / 1.211 / B1= 2.402 / X1= [i,p-PFNA] / 0.563 / 0.015
PFDA / [PFDA]w / 0.049 / B1= 0.610
B2= -0.793
B3= 2.518 / X1= [PFHpA]
X2= [PFHxA]
X3= [PFDS] / 0.949 / 0.000
[PFDA]s / -0.021 / B1= 1.008
B2= 0.333 / X1= [PFHpA]
X2= [PFDS] / 0.775 / 0.008
PFDS / [PFDS]s / -0.045 / B1= 0.084
B2= 0.752 / X1= [PFOA]
X2= [PFDA] / 0.647 / 0.009

a Sig.: Significance

b [Y]w: Concentration of the compounds in water

c [Y]s: Concentration of the compounds in sediments

Pico et al. (2011) Supporting Information Page 1 of 2