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DSD-INT 2019 D-Health - quantifying impacts of water quality - Geerling


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Presentation by Gertjan Geerling, Deltares, at the Delft3D - User Days (Day 4: Water quality and ecology), during Delft Software Days - Edition 2019. Thursday, 14 November 2019, Delft.

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DSD-INT 2019 D-Health - quantifying impacts of water quality - Geerling

  1. 1. D-Health: quantifying impacts of water quality Dr. Gertjan Geerling |
  2. 2. Water = Health
  3. 3. Personal experience?
  4. 4. Direct exposure in daily use
  5. 5. Plastics and pathogens
  6. 6. Balance benefits & impacts
  7. 7. Source: G. Donchyts, Deltares Over a million dams in the world Orange dots are known dams.
  8. 8. Healthburden Weeks 0 1 2 3 4 Floods and Health 50% of flood victims die within the year after the flood Flood Increased exposure to pathogens, reduced drinking water quality Direct casualties Increase in mosquito vectors and associated diseases Increase in effects of mold in housing, other secondary effects Source: G. Geerling, Deltares
  9. 9. Source figure: Myers, S. S., Gaffikin, L., Golden, C. D., Ostfeld, R. S., H Redford, K., H Ricketts, T., et al. (2013). Human health impacts of ecosystem alteration. Proceedings of the National Academy of Sciences, 110(47), 18753–18760. Health inequities
  10. 10. Vision: co-manage water and public health • Engage: learn the same language • Trade-off investments in water / health • Equity of benefits
  11. 11. Any thoughts ?
  12. 12. WATER How are humans exposed? Swimming Drinking Cooking Defecating Working Floods Washing Inhaling (vapor) Eating Bathing Industry Pathogens Open defecation Domestic effluent Water-related disease Agriculture
  13. 13. Emissions Hydrology Fate and transport concentrations Post-processing of Delft3D FM Suite results WATER Swimming Drinking Cooking Defecating Working Washing Inhaling (vapor) Eating BathingExisting modules Health impact module
  14. 14. • Sampling Pilot project: Upper Citarum Basin, Indonesia
  15. 15. Quantify Exposure Quantifying exposure to water: intake pathways WATER Swimming Drinking Cooking Defecating Working Washing Inhaling (vapor) Eating Bathing
  16. 16. Health risk (not quite impact yet) Daily probability of infection by Cryptosporidium and the annual mean risk. Source: Ira Wardani, Deltares. Research in collaboration with Wageningen University.
  17. 17. Example 2: Catchment wide risk assessment Source: Jos van Gils, Deltares.
  18. 18. Tracing to sources Trimethoprim/sulfamethoxazole is an antibiotic used to treat a variety of bacterial infections. Human and veterinary use. Source: Jos van Gils, Deltares.
  19. 19. D-Health roadmap Substances Pathogens Ecological (vector borne) 2020 2021 Scoping + Pilot - Knowledge review - Engage stakeholders / partners - Outline framework - What is available? - Gather existing methods / tools - Start pilots in impacted areas Pilot + Building - Work with stakeholders - (pilot) projects - Apply tools, integrate - Evaluate impact Climate and Water management scenarios for quantifying mosquito habitat as input to disease outbreak models (the Netherlands) *) Looking for international co- operation and projects *) outbreaks-in-a-changing-world-a-one-health-approach/
  20. 20. Dr. Gertjan Geerling | Thank you! For collaboration contact me @ LinkedIn: Whatsapp: +31 6 511 949 01