Simulation of Observed PCBs and Pesticides in the Water Column during the North Atlantic Bloom Experiment

Transcription

1 University of Rhode Island Graduate School of Oceanography Faculty Publications Graduate School of Oceanography 2015 Simulation of Observed s and Pesticides in the Water Column during the North Atlantic Bloom Experiment Lin Zhang Louis Thibodeaux See next page for additional authors Follow this and additional works at: The University of Rhode Island Faculty have made this article openly available. Please let us know how Open Access to this research benefits you. This is a pre-publication author manuscript of the final, published article. Terms of Use This article is made available under the terms and conditions applicable towards Open Access Policy Articles, as set forth in our Terms of Use. Citation/Publisher Attribution Lin Zhang, Louis Thibodeaux, Lee Jones and Rainer Lohmann (2015). " Simulation of Observed s and Pesticides in the Water Column during the North Atlantic Bloom Experiment. " Environmental Science & Technology, 49,(23), Available at: This Article is brought to you for free and open access by the Graduate School of Oceanography at DigitalCommons@URI. It has been accepted for inclusion in Graduate School of Oceanography Faculty Publications by an authorized administrator of DigitalCommons@URI. For more information, please contact digitalcommons@etal.uri.edu.

2 Authors Lin Zhang, Louis Thibodeaux, Lee Jones, and Rainer Lohmann This article is available at

3 Supporting Information for Simulation of observed s and pesticides in the water column during the North Atlantic Bloom Experiment. Lin Zhang 1,2, Louis Thibodeaux 3, Lee Jones 4 and Rainer Lohmann 1* 1 Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island , USA 2 Biological Science, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA 3 Cain Department of Chemical Engineering, Louisiana State University, LA, USA 4 Mathematical Science, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA * corresponding author: Tel: , Fax: ,E- mail: lohmann@gso.uri.edu Pages: 16 Tables: 8 Figures: 2 S1

4 SI Tables Table SI- 1. Amount of Blanks for s in Air, Water, and Zooplankton Samples. Recoveries for 13 C- Surrogates. Average Blanks (pg) Air Blanks S.D Water Blanks S.D Zooplankton Blanks S.D Average Recoveries 13 C C C C C C C- 209 Air 90% 95% 91% 97% 97% 107% 80% S.D. 17.0% 19.0% 16.1% 16.2% 16.3% 21.1% 17.1% Water 79% 82% 81% 83% 84% 86% 85% S.D. 8% 10% 10% 10% 11% 12% 9% Zooplankton 70% 87% 79% 84% 84% 89% 66% S.D. 20% 20% 18% 20% 21% 25% 23% S2

5 Table SI- 2. Concentrations (pg m -3 ) in the Gas Phase on the Year-day of Yearday Σ ICES S3

6 Table SI- 3. Concentrations (pg L -1 ) in the Dissolved Phase on the Year-day of Yearday Σ ICES S4

7 Table SI- 4. Fugacity Ratios for Various Congeners as a Function of Julian Day Julian Day S5

8 Table SI- 5. Air-Water Exchange Velocities (m/d) Calculated Using Three Different Wind Speed Dependency Relationships; Liss and Merlivat 1986 (LM86), Nightingale et al 2000 (N00), and Wanninkhof and McGillis 1999 (WM99). Velocity (m/d) Year- Day LM86 N00 WM99 LM86 N00 WM S6

9 Table SI- 6. Concentrations (ng g -1 ) in the Lipids of Zooplankton on the Year-day of Yearday lipid (%) Σ ICES % a 3.09% b 4.97% c 1.72% % a 6.15% b 2.86% a 6.45% b 3.17% % a 4.83% S7

10 Table SI- 7. Physiochemical Properties of Various s and OCPs (Schenker et al 2005) Log KOW UOW Log KAW ΔUAW Log KOW α- HCH β- HCH γ- HCH HCB HEP X TC CC p,p'- DDE ΔUOW Log KOA ΔUOA Log KAW ΔUAW Log SA Log SW Log SO S8

11 Table SI- 8. K lipid for different congeners. Regression Slopes, Intercepts, R-Squares for log K lipid vs log K ow Slope Yearday intercept R square a b c a b a b a S9

12 Table SI- 9 Summary of Sampling Information for Air and Water Samples Collected Air Water Start End Air Julian volume volume Sample Date Time Time Temp day Latitude Longitude (m 3 ) (L) (GMT) (GMT) ( C) /30/ :45 8: N/A 5/1/2008 8:50 20: S10 Water Temp ( C) /1/ :50 9: /2/2008 9:20 21: /2/ :50 8: /3/~5/4/2008 9:25 17: /4/~5/5/ :10 13: /5/ :45 21: /5/ :40 09: /6/ :43 20: /6-5/7/ :59 08: /7/ :03 20: /7-5/8/ :44 09: /8/ :50 21: /8-5/9/ :31 10: /9/ :01 21: /9-5/10/ :45 11: /10/ :22 21: / /11/ :10 19: / /15/ :52 12: / /16/ :53 13: / /17/ :40 16: / /18/ :15 15: / /19/ :49 20: / /20/ :28 20: / /21/ :25 11: /21/ :28 22: /21-5/22/ :58 11: N/A

13 SI Figures Iceland 1 Figure SI- 1. Sampling Location. Blue lines are the ship track of R/V Knorr. Numbers are Year-day of Dashline denotes a 2 X2 box for the Eulerian model. S11

14 Figure SI-2. Air-Water Exchange Fluxes (ng m -2 d -1 ) of Different Congeners Calculated Using Three Different Relationships on Year-Day 123 of S12

15 Figure SI-3, 10,000 Monte-Carlo simulation curves (red) by varying initial dissolved p,p - DDE concentrations, air-water exchange coefficients (K AW ), organic carbon-water partitioning coefficients(k OA ), chemical degradation constants (k_deg) 10 times each following normal distribution. Observed dissolved concentrations (black) were plotted to compare with simulations. S13

16 Figure SI-4 Residual (observations minus simulation) plot for dissolved p p-dde. S14

17 Figure SI- 5. Comparison of Modeled and Observed α-hch Dissolved Phase Concentrations (pg L -1 ) as a Function of Year-day S15