Whats in your Flood Waters

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Whats in your Flood Waters? The Potential
Release of Industrial, Agricultural, and
Wastewater Pollutants
Keri C. Hornbuckle Dept. Civil and Environmental
Engineering IIHR-Hydroscience
Engineering University of Iowa
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Iowa City Press Citizen
USGS
USGS
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USGS photo

• Were pollutants released into the flood waters?

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• Were pollutants released into the flood waters?
• What were the major sources of pollutants in the
  flood waters

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• Were pollutants released into the flood waters?
• What were the major sources of pollutants in the
  flood waters
• What health risks or environmental hazards are
  presented to us from pollutants in the flood
  waters?

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Transport and Deposition of Toxics
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Cedar Rapids 2008 Flood
Cedar River
Estimated boundary of the 2008 flood
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Research Hypotheses
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Research Hypothesis

• Sources of sediments can be tracked using
  pollutant analysis in three categories
• Industrial Pollutants
• Wastewater Pollutants
• Agricultural and Household Pesticides

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Polychlorinated Biphenyls
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PCBs Biomagnify
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Synthetic Musk Fragrances
Phantolide (AHMI)
Celestolide (ADBI)
Galaxolide (HHCB)
Tonalide (AHTN)
Traseolide (ATII)
Cashmeran (DPMI)
NO2
O2N
NO2
NO2
Musk Ketone
Musk Xylene
NO2
O
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Synthetic Musks
Natural Musk
stiefel
Richards packaging
Perfume additives Body lotions Detergents Shamp
oo Fabric Softeners Soap
Moschus moschiferus
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Chlordane and Related Compounds
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Soil Sampling in Cedar Rapids August 2008
Cedar River
Estimated boundary of the 2008 flood
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Soil Sampling in Cedar Rapids
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Conclusions

• Pollutants such as PCBs, Synthetic Fragrances,
  and Chlordane were probably mobilized in large
  quantities
• These pollutants probably remain in the surface
  soils of Cedar Rapids
• We have not yet determined what the major sources
  were but the pollutants will help us understand
  health concerns, potential hazards, as well as
  the science of sediment, water, and pollutant
  transport.

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Contributors

• 16 volunteers who collected Cedar Rapids soils
• Undergraduate researchers Zach Rodenburg, Nick
  Erdman, and Jess Smith
• Graduate researchers Andres Martinez, Paul
  Eastling, and Carolyn Persoon
• Post-doctoral researchers Dingfei Hu
• Collaborators Thanos Papanicolaou (UIowa), Dana
  Kolpin (USGS)
• Funding from the National Science Foundation