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D-Health:
quantifying impacts of
water quality
Dr. Gertjan Geerling | gertjan.geerling@deltares.nl
Water = Health
Personal experience?
Direct exposure in daily use
Plastics and pathogens
Balance benefits & impacts
Source: G. Donchyts, Deltares
Over a million
dams in the world
Orange dots are
known dams.
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
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. http://doi.org/10.1073/pnas.1218656110
Health inequities
Vision: co-manage water and public health
• Engage: learn the same language
• Trade-off investments in water /
health
• Equity of benefits
Any thoughts ?
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
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
• Sampling
Pilot project: Upper Citarum Basin, Indonesia
Quantify Exposure
Quantifying exposure to water:
intake pathways
WATER
Swimming
Drinking
Cooking
Defecating
Working
Washing
Inhaling (vapor)
Eating
Bathing
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.
Example 2: Catchment wide risk assessment
Source: Jos van Gils, Deltares.
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.
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
*) https://ncoh.nl/research/phd-research-programme/vector-borne-diseases/preparing-for-vector-borne-virus-
outbreaks-in-a-changing-world-a-one-health-approach/
Dr. Gertjan Geerling | gertjan.geerling@deltares.nl
Thank you!
For collaboration contact me @
Gertjan.Geerling@deltares.nl
LinkedIn: https://nl.linkedin.com/in/ggeerling
Whatsapp: +31 6 511 949 01

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

  • 1. D-Health: quantifying impacts of water quality Dr. Gertjan Geerling | gertjan.geerling@deltares.nl
  • 4. Direct exposure in daily use
  • 7. Source: G. Donchyts, Deltares Over a million dams in the world Orange dots are known dams.
  • 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. 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. http://doi.org/10.1073/pnas.1218656110 Health inequities
  • 10. Vision: co-manage water and public health • Engage: learn the same language • Trade-off investments in water / health • Equity of benefits
  • 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. 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. • Sampling Pilot project: Upper Citarum Basin, Indonesia
  • 15.
  • 16.
  • 17. Quantify Exposure Quantifying exposure to water: intake pathways WATER Swimming Drinking Cooking Defecating Working Washing Inhaling (vapor) Eating Bathing
  • 18. 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.
  • 19. Example 2: Catchment wide risk assessment Source: Jos van Gils, Deltares.
  • 20. 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.
  • 21. 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 *) https://ncoh.nl/research/phd-research-programme/vector-borne-diseases/preparing-for-vector-borne-virus- outbreaks-in-a-changing-world-a-one-health-approach/
  • 22. Dr. Gertjan Geerling | gertjan.geerling@deltares.nl Thank you! For collaboration contact me @ Gertjan.Geerling@deltares.nl LinkedIn: https://nl.linkedin.com/in/ggeerling Whatsapp: +31 6 511 949 01