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Chon-Lin Lee 1 *, Bing-Sian Lin 1 , and James T. Liu 2

Riverine transport of polycyclic aromatic hydrocarbons from Kaoping River (Taiwan) to coastal ocean. Chon-Lin Lee 1 *, Bing-Sian Lin 1 , and James T. Liu 2 1 Department of Marine Environment and Engineering 2 Institute of Marine Geology and Chemistry National Sun Yat-sen University.

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Chon-Lin Lee 1 *, Bing-Sian Lin 1 , and James T. Liu 2

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  1. Riverine transport of polycyclic aromatic hydrocarbons from Kaoping River (Taiwan) to coastal ocean Chon-Lin Lee1*, Bing-Sian Lin1, and James T. Liu2 1 Department of Marine Environment and Engineering 2 Institute of Marine Geology and ChemistryNational Sun Yat-sen University

  2. Introduction What are Polycyclic Aromatic Hydrocarbons (PAHs)? Hydrophobic Organic Compounds (HOC) Persistent Organic Pollutants (POPs)

  3. Naphthalene Acenaphthylene Acenaphthene Fluorene Anthracene Phenanthrene Fluoranthene Pyrene Benzo(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Indeno(1,2,3-cd)pryene Ring structure of PAHs

  4. Introduction Suspect carcinogens Endocrine disruptors Bioaccumulation Source identification Why PAHs?

  5. PAHs in environment Petrogenic sources Oil spill Industrial waste Pyrogenic sources Industrial emission Vehicles emission Open-burning emission Diagenetic source Diagenesis of biogenic precursors Perylene Retene

  6. CH3 Source identification Alkyl- phenanthrenes Anthracene Fluorene Benzo(a)anthracene Benzo(g,h,i)perylene Phenanthrene Acenaphthene Naphthalene Pyrene Fluoranthene Indeno(1,2,3-cd)pryene Chrysene Benzo(a)pyrene

  7. 0 270 90 Upcanyon 180 Down-canyon heading samples Down- canyon Up-canyon heading sample PC3 vs PC4 T4KP Gasoline vehicle source Oil source M-D Fang, W-K Chang, C-L Lee, James T. Liu, 2009, J. Mar. Syst. (76) 457-467

  8. PCA score plot – PC1 versus PC2 M-D Fang, W-K Chang, C-L Lee, James T. Liu, 2009, J. Mar. Syst. (76) 457-467

  9. Fate of anthropogenic HOCs and fluvial particles? N. Shelf Outer Shelf S. Shelf Canyon

  10. Objectives • To estimate the annual fluvial discharges of polycyclic aromatic hydrocarbons and particulate organic carbons from Gaoping River • To deploy PAH diagnostic ratios and statistical tools (e.g. principal component analysis) for source recognition

  11. Sampling Map From： NOV 06 To： NOV 07

  12. Methods (3) rotary evaporation (2) liquid-liquid extraction (1) Soxhlet extraction (5) GC-MS (4) Clean up M-D Fang, F-C Ko, J. E. Baker, C-L Lee, 2008, Sci. Total Environ. (407) 548-565

  13. PAH concentrations (ng/L)

  14. Particulate PAHs(ng/L) VS TSP

  15. Particulate PAHs(ng/g) VS POC R=0.584

  16. Source Identification Pyrogenic Petrogenic

  17. May 07 Dry season Wet season Sampling Precipitation

  18. PC1 score plot Pyrogenic source PC1 scores Petrogenic source M-D Fang, P-C Hsieh, F-C Ko, J. E. Baker, C-L Lee, 2007, Mar. Pollut. Bull. (54), 1179-1189. & J-J Jiang, C-L Lee, M-D Fang, James T. Liu, Mar. Pollut. Bull. In Press

  19. HCA cluster • Canyon and Southern shelf Ⅰ • Northern shelf • Wet season • Canyon and Southern shelf Ⅱ • Dry season • Straw burning

  20. S CH3 CH3 S HCA Compositional pattern Methyl-PAHs Pyrogenic

  21. S CH3 S CH3 PCA Loading Mixed Sources Petroleum pyrolysis pyrolysis

  22. River Suspended Particles Between wet and dry season：Mixed Sources Coastal Surface Sediments

  23. Unburned Petroleum Petrogenic pyrogenic Pyrogenic Biomass/petroleum combustion Diesel oil

  24. Krosa typhoon sampling Estimate PAHs Flux Typhoon: Aug : Pabuk, Wutip, Sepat Sep : Wipha Oct : Krosa Nov : Mitag Total Flux: 4.3 ton/year Wet season : 99.0% Krosa typhoon: Particulate phase : 12.8% Dissolved phase : 6.7%

  25. Summary

  26. Summary

  27. Acknowledgements • National Science Council for funding support • Prof. H-L Lin for the precious samples

  28. Thank youand your comments are welcomed

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