Serving your science at the policy-making table Chelsea M. Rochman - - PowerPoint PPT Presentation

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Serving your science at the policy-making table Chelsea M. Rochman - - PowerPoint PPT Presentation

Sep 08, 2022 253 likes •598 views

Serving your science at the policy-making table Chelsea M. Rochman Aquatic Health Program, UC Davis School of Veterinary Medicine Department of Earth Sciences, University of Toronto cmrochman@ucdavis.edu @ ChelseaRochman Cocktail of Chemicals

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Chelsea M. Rochman

Aquatic Health Program, UC Davis School of Veterinary Medicine Department of Earth Sciences, University of Toronto cmrochman@ucdavis.edu

@ChelseaRochman

Serving your science at the policy-making table

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Plastic Debris

styrenes PCBs PBDEs BPA phthalates PAHs Ni Pb

Chemical Ingredients Chemical Byproducts Sorbed Contaminants

Cocktail of Chemicals

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Another media for chemical partitioning

ATMOSPHERE SEA-SURFACE MICROLAYER WATER BIOTA SEDIMENT PLASTIC PLASTIC PLASTIC SEDIMENT PORE WATER

Rochman et al., 2013 ES&T Rochman and Monzano et al., 2013 ES&T Rochman et al., 2014 PLOS ONE

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Rochman et al., 2013 Scientific Reports Rochman et al., 2014 STOTEN Rochman et al., 2014 STOTEN

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Rochman et al., 2015 Ecology

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Rochman et al., 2015 Scientific Reports

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Science & Policy

Rochman et al., ET&C (in press)

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78% of Priority Pollutants listed under Clean

Water Act are associated with plastic debris

Rochman, Browne et al., Nature, 2013 Rochman, C.M., Browne M.A. et al., Nature (2013)

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The sources and sinks of plastic in urban watersheds

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Policy Applications

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HOUSEHOLD USE WASTEWATER TREATMENT AQUATIC HABITATS

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California AB 888

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Illinois Microbead-free Waters Act

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In the US, we estimate ~3 trillion microbeads are released into aquatic habitats per year!

7×

Rochman et al., ES&T 2015

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cmrochman@ucdavis.edu

@ChelseaRochman

Science Solutions

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Acknowledgments

  • Swee Teh, Susan Williams, Dolores Baxa, Eunha Hoh, Brian Hentschel, Rebecca Lewison, Tony

Underwood, Mark Browne, Anna-Marie Cook, Harry Allen, Carlos Manzano, Jeff Miller

  • Sebastian Serrato, Rosalyn Lam, Jessica Patru, Erika Marcelino, Jessica Abbott, Eliot Crafton
  • Hentschel, Hoh and Teh Labmates.
  • NOAA Marine Debris Program
  • David H. Smith and family; SCB
  • NCEAS and Ocean Conservancy
  • AXYS Analytical Services Ltd.
  • ACC, SABIC Innovative Plastics

Thank you for listening

cmrochman@ucdavis.edu

@ChelseaRochman

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Bioaccumulation

2-factor ANOVA, n=3 P=0.234 2-factor ANOVA, n=3 P=0.118 2-factor ANOVA, n=3 P<0.001

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Do fish living in regions with greater plastic contamination have greater concentrations of chemicals in their body burden?

Rochman et al., 2014, Sci Tot Environ

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Treatment # fish Severe Glycogen Depletion Lipidosis Single Cell Necrosis Control 24 0% 21% 0% Virgin-plastic 24 46% 29% 0% Marine-plastic 19 74% 47% 11%

Liver Toxicity

Rochman et al., 2013, Nature Scientific Reports

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X400, scale bar 20 um

1-factor ANOVA for each sex, n=3 * P < 0.05, ** P < 0.01

Rochman et al., 2014, STOTEN

Endocrine Disruption

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Anthropogenic debris Plastic Fibers

~ 1 in 4 fish from BOTH locations had anthropogenic debris.

21 out of 76 28% 16 out of 64 25%

USA Indonesia

4 out of 12 33%